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Free Cosmetic Science Report

FACT: Most cosmetic chemists are thrown into their jobs with little or no training. Sign up for the Chemists Corner newsletter and let us show you …

“How To Create and Test Personal Care and Cosmetic Products Like a Pro”

Let us Take You ‘Behind the Scenes’ Of a Cosmetic Laboratory and We’ll Show
You How to Create or Copy Almost Any Cosmetic Formula…

Here are some things you’ll learn by signing up.

  • The vital chemistry knowledge every formulator need but isn’t taught in college.
  • How to use ingredient lists to figure out competitor’s formulas.
  • Where to find ingredients lists without leaving your lab.
  • The best sources for free starting formulas.

 Get Free Access to “How to Knock-off Any Cosmetic Formula” and a 4-part mini series about cosmetic science

What did you think of the report?

Leave a comment below and let us know what you thought of the report!

Perry, 44

{ 1236 comments… add one }
  • Farzan 02/07/2016, 7:09 am

    Very useful…..it was really helpful.

  • Tahir 02/05/2016, 12:38 pm

    It is a good basic information for beginners.
    But i m not intresting to duplicate any formulation.
    I want to creat something own.

  • ben sam 02/03/2016, 11:05 am

    thanks very much for the information. really helpful indeed!

  • Dragos 02/03/2016, 2:41 am

    As a beginner in Cosmetic Formulation, I found this read to be a very informative one.
    Thank you Perry

  • hailey 02/01/2016, 11:34 am

    Thanks for your interesting lessons! very helpful!

  • Marzia 02/01/2016, 4:44 am

    Hello, I’m very happy to discover your webside, it’s very interesting; above all I’m peausure to receive your e-mail with lesson.
    Thank you very much Look forward to your next mails

  • Choma Matale 02/01/2016, 12:09 am

    I have read the book and I have thoroughly enjoyed because it. For me it is to understand and therefore I do not have any questions because everything in it makes senese. In fact going through this report have helped me to change may approarch to making a formulation. Whereas I have been making trial and error of making something and afterwards I triy to compare it with existing products (and it takes a very long time) now I will start with existing products of interest and probably reduce the time by 75% or more.

    It was a very good reading and thanks a lot. It provides a good foundation on formulation and may be there is other material that on can study to advance to the next level. Once more, thanks very much I have enjoyed reading this material and Ithink I will keep coming back to it for reference.

  • Simona 01/29/2016, 2:48 pm

    I was very happy to find your site. I used to work 15 years in R%D for cosmetic but it was 16 years ago. In last decade I am giving the lectures from cosmetology for students. I was just thinking how to refresh and make more interesting my classes and I found your corner. This inspired me a lot.
    I went through titles and contents very briefly…for now I can just say that I am very thankful that I can use this knowledge for m y work…later on I hope I will be capable to give also some constructive remarks.
    Thank you for encourage me to participate in this communication.
    Beside you made an impression on me also with mentioning Amway. I am ABO in SI looking to spread networking globally… Products are incredible …business opportunity also…
    Going back to lectures…my I kindly ask you for some advices, please…how to make lectures more attractive for students ….what to do to became better teacher…
    Thank you very much for your time. Look forward to your reply.

    • Perry Romanowski 01/29/2016, 4:26 pm

      To make lectures better for students…I don’t know. You just have to practice a lot and make changes when things don’t work right. Keep doing the things that do work right. And juggling. People like juggling.

  • Mona 01/27/2016, 12:30 pm

    I appreciate the insight into this matter. I will not try duplicating someone else’s formula (ethical decision), but it was interesting to learn about the basic composition of cosmetic formulations anyway. Chemist’s Corner is a helpful site to start-ups, thank you!

  • Luis 01/27/2016, 10:10 am

    Thanks for this piece of work! I found it very useful for starting in the formulation world. Definitely worth!

  • TUAN 01/26/2016, 10:52 pm

    Thank you for your interesting lessons

  • Carlos 01/25/2016, 6:23 pm

    Very useful, thank you very much

  • Stefano 01/25/2016, 10:00 am

    Very concise and helpfull for starting formulators.

  • Eva 01/22/2016, 5:06 am

    I found the report very enlightening and easy to understand for budding formulators. Having this blueprint is invaluable when you start formulating; it’s not just about copying, it’s about learning what makes a product what it is, and as you gain confidence, starting your own R&D based on that knowledge.

  • Valerie 01/21/2016, 4:40 pm

    This was informative, but I’m particularly interested in creating products out of 100% natural ingredients (I know, “natural” can be construed to mean a lot of things). I mean ingredients that are directly derived from plants–oils, butters, waxes, essential oils, hydrosols, etc. Those don’t fall under the typical class and use of the kind of ingredients you talk about. When I’m looking at natural products, how can I classify and break those down?

    • Perry Romanowski 01/21/2016, 4:46 pm

      See our website for articles about natural formulating.

  • Ugochi olabisi 01/21/2016, 6:51 am

    I learnt How to use an existing product to derive the prototype. Writing down the ingredient panel then Seperating them according to their functions. For instance conditioners, moisturizers or surfactants. Bearing in mind that the percentage content of ingredients are usually in descending order in terms of value I:e 70%_ 10% etc.

  • Navya 01/21/2016, 6:26 am

    I am realy happy with this website because it realy helping me lot in my project work…
    Thank you

  • Ugochi olabisi 01/21/2016, 6:19 am

    Reading through your site , I have mor understanding on the first steps to take towards formulating a product. listing out the chemicals in the ingredient panel first. The grouping of chemicals into their functions then percentage composition. This has been helpful.

  • Meg 01/21/2016, 2:43 am

    Thankyou, it was very informative, gives me somewhere to start, can’t wait to start mimicking my favourites.

  • azlan 01/20/2016, 10:40 pm

    i do like cosmetic field industry. I wanna create a product as natural to replace synthetic product in the market. Moreover less information to do my own product, luckily when i downloaded “How to Knock off Any Cosmetic Product”, I can get some idea and knowledge how to start my cosmetic business. Thanks for this effort. Keep it up and keep me in the loop

  • valentine kafata 01/20/2016, 4:23 pm

    woow!! that information is amazing guyz thank you so much.I do cosmetics and now with this copy am flying .

  • Jackie 01/20/2016, 12:27 pm

    The ebook was very helpful, it gave me good insight and more information on proper formulation. Thanks!

  • Thivashkar 01/17/2016, 10:15 pm

    Thank you for this free cosmetic science course.

  • Chichi 01/17/2016, 5:14 pm

    I am interested in formulating my own cosmetics but had no idea where to start. This report was very informative and now I know what the next step is. Thank you.

  • Danielle 01/17/2016, 9:32 am

    Thank you so much for the free report!! I found the information to be very straightforward and easy to follow. It’s exactly what I needed to continue to move forward in the right direction. Thanks!

  • Gary jones 01/16/2016, 12:23 pm

    Very helpful, concise and easy to follow. A very generous piece of advice

  • Faiyaz Ahmed 01/15/2016, 10:31 am

    It is really a wonderful approach and inspiring for an absolute beginner. I am working in the sales team of a company in Pakistan, who manufactures janitorial Chemicals for personal care. I’ll definatly contact you if we shall find any difficulty. Thank you for making this report. If you need any help from me, please do write to me.

  • Allan N. Ruiz 01/14/2016, 7:04 pm

    This was useful thank you for sharing this information.

  • Ashley Powers 01/13/2016, 6:22 pm

    I am a beginner and found the information in the report to be helpful. Thank you for sharing.

  • Sharon 01/12/2016, 3:38 pm

    I just finished reading “How to Knock off Any Cosmetic Product” a few hours ago. It was interesting to see the approach done from a cosmetic chemist point of view and to see some tips on how to do it better than I did on my own. I’ve already started planning on my next “knock off”.

  • Crytal 01/12/2016, 1:00 pm

    Thank you for the information. Your website and all information is the best I have found online. I appreciate it and all who are actively participating in your website.

  • Ree 01/12/2016, 11:48 am

    Thank you, very informative.

  • Emmanuel SGI 01/12/2016, 12:18 am

    Very helpful. I learnt new things and am particularly impressed with the URLs in the book. I’ll be needing the other book though.
    Thanks, Perry.

  • Thalia 01/11/2016, 1:30 pm

    Thank you. Right now my team and I are planning a proyect and this information is totally useful for us.

  • Kyei 01/10/2016, 6:56 pm

    very educative and informative.

  • Dana 01/09/2016, 12:00 pm

    Thank you for a this free cosmetic science report. For me it is helpful information for starting home-made products

  • Maggie 01/09/2016, 10:22 am

    Thank you for this information. I am a beginner and this guide has been very helpful.

  • Tina 01/08/2016, 2:45 am

    I love all this anti aging potions and scientific chemist ingrediants information i find it very interesting wish i was a chemist love it ..love it …lovin it all xxxxxx

  • Vera 01/07/2016, 8:18 am

    I just recently completed a course in cosmetic making and get you of book made it so easy for me to understand everything I was thought, looking forward to the mini series you are helping me build my career God bless you

  • Jackie 01/06/2016, 10:02 pm

    This report is very informative for those who are interested in formulating cosmetics. It is also instructional as it provides a step by step practical guide in cosmetic formulation. Thank you Perry. I am looking forward to a similar report but in the context of natural and organic cosmetics formulation. Kudos for the effort!

  • dennis hague 01/05/2016, 1:36 am

    Thank You, the information that you share is beyond awesome. Giving us years of education plus your experience for free is amazing.

  • Michelle Wallace 01/04/2016, 11:48 pm

    Very good info!

  • Cassandra Gonzalez 01/04/2016, 9:58 am

    I recently just signed up and I am very pleased with the information given to me in this book. I recommend anyone to this site whose looking to making their own cosmetic line .

  • Jodi 01/03/2016, 9:21 pm

    Wow 27 Pages of no nonsense and useful information thank you so much!!!

  • julia 01/03/2016, 7:05 am

    This article is about taking a forensic approach (a series of logical steps) to solve a problem, in this case replicating an existing cosmetic product. Will you be able to replicate a product just by reading this article? No, but it is a good first knowledge step of how to think and and where to look.

  • Colin rodgers 01/03/2016, 2:44 am

    I like what I see and am interested in moving forward with you company

  • Rasheed 01/02/2016, 4:52 am

    Dear Mr
    Perry thank you it’s useful report

  • W 01/01/2016, 8:45 pm

    Very informative.

  • Silvana 12/31/2015, 11:15 pm

    I really enjoyed it! Thank you for the information and your awesome work!

  • Rocky 12/31/2015, 12:51 pm

    Dear sir,I really appreciate your advices.it’s help me more knowledge.Thanks alots.

  • Agustin Saucedo 12/30/2015, 11:01 pm

    Very interesting and useful, thanks

  • Agustin Saucedo 12/30/2015, 10:56 pm

    For me is very interesting the formulation of very low viscosity lotions and serums with collagen as an active ingredient, to be applied as an spry.

  • krisztee 12/30/2015, 2:05 pm

    It was helpful and useful :)

  • chuks 12/28/2015, 12:45 pm

    the site did not open so it was not possible for. me to download the stuff.may be you are not aware of the promblem

    • Perry Romanowski 12/28/2015, 4:45 pm

      You probably have to ‘right click’ the link then save it to your computer. Sometimes if you don’t have the capability to read .pdf files in your browser you won’t be able to see the book.

  • Carla 12/28/2015, 8:47 am

    I appreciate the information Perry shares so graciously. I never thought information would be assessable to me. I am excited for the journey.

  • NR 12/27/2015, 7:03 pm

    Perry thank you for sending me a copy of your most informative book ‘How To Knock-Off a Cosmetic Formula’. The way you have laid out the steps sequentially delivers the material to my tidy mind beautifully and I love the way you have included links to relevant sites, this is so helpful. I see you this ebook is written to a broad range of folk, from the beginner cosmetic scientist to those with access to labs. I look forward to receiving your Cosmetic Science Introduction Course :)

  • Afroditi Tsesmesidou 12/27/2015, 10:07 am

    it was interesting

  • Idowu afeez 12/26/2015, 8:24 am

    Its quite educating and beneficial,which will help we undergraduates be self employed after graduating as a chemist..looking forward to hearing from you..tanks alot

  • Stephanie 12/23/2015, 1:30 pm

    This was quite insightful and threw more light on how to make quality products at very affordable prices.


  • Terry 12/20/2015, 4:11 pm

    Thank you Perry for your generosity. I found some of your information very informative and am looking forward to reading your book “Beginning Cosmetic Chemistry”. Thanks again.

  • Juliet 12/20/2015, 9:13 am

    Quite expository am really inspired to chase my dream thanks Perry for sharing

  • joe wolf 12/19/2015, 11:19 pm

    Thank very much for the oppertunit to start the course

  • Maureen Tarulli 12/18/2015, 3:10 pm

    I am still reading through this report, but as an educator, (in collaboration with other HS educators) I feel this is going to be VERY relevant and informative to students. We are trying to help them see applications of Chemistry in REAL LIFE and your report is full of information that will help students see how Chemistry can apply to the products they use in life, PLUS, hopefully, it will provide information that may even influence student’s careers and ideas for their future! Thank you for making this available for FREE for educators and others that are interested!

  • Ashish Pawnikar 12/17/2015, 10:53 pm

    Dear Perry,
    It’s really informative & useful to crack the formulation of competitors, we called it ‘Tear down’ of product, i am doing this practice from last 3yrs. It is very helpful to new comers to learn & even for experienced professionals also. One would get idea of claims of the product which is of great help. Even we can expand our ingredients vocabulary & update with the new ingredients & technology which is happening in this glamorous world of beauty.

  • Luisa Guevara 12/17/2015, 6:08 pm

    Your report is an excellent tool for those of us who re in the process of starting our on business in the cosmetic industry. The suggested reading material is great! Thank you for sharing with us. I cant wait to read more on your site.

  • Monique 12/15/2015, 9:52 am

    Hi, I have not finished reading it, but so far it is interesting and surprising of how easy it is to make a knock off. I am not a cosmetic chemist nor studying towards becoming one. I am however very interested in starting a face care range containing antioxidants. The tips and comments on chemist corner I find informative and helpful. Thanks

  • PHYU PHYU KHIN 12/15/2015, 2:04 am

    Although I haven’t finished of reading your book, I assure that your book is so fabulous. I gained a lot of knowledge from your book. I feel that I so lucky to have your book. thank you.

  • Jamie Carman 12/12/2015, 2:57 pm

    Very informative reading with a good supply of extra help with outside information links. I found one in particular called CosDNA which is very helpful. Thank you Perry

  • Donna 12/12/2015, 9:48 am

    I recently started making my own “anti-aging” serums and have been impressed with the effectiveness of the serums I’ve made already. I wanted to gain more insight into the ingredients that are in products in the stores and spas and how they contributed to the end product – so happy I found Chemistry Corner and downloaded the How to Knock off Any Cosmetic Product report. I’m starting on a new moisturizing product and this report has proven to be instrumental.

  • Lindiwe Gontsi 12/11/2015, 10:03 am

    I really learned a lot in the knock off pointers. I would however like access to the beginners chemistry book. Thank you.

  • Naima 12/10/2015, 11:36 am

    I find your mini book very useful as I am a beginner so I work on existing formulas actually I have a formula of a hand cream which I use 3 or 4 years very good cream especially in winter i’ll try to find out the percentages of its ingredients and i’ll tell you
    I am from Morocco so some of the steps are not possible for example using patent all I have is the ingredients on the packaging and trying the product. my other problem is names for example polyquatenium-10 there are various those which are highly cationic and less viscous and those highly viscous what to tell the supplier

  • Edwin Stevenson 12/10/2015, 12:23 am

    Greetings from Durban, South Africa. I am currently doing cosmetics training with Professor Francis Shode. Your information will be most welcome, and will increase my knowledge and interest in the industry. I look forward to receiving your emails. Kind regards. Edwin

  • May 12/09/2015, 10:40 am

    My grandfather was a pharmacist and he used to make medical and cosmetic products, I never met him but I think I like to learn those things from my councious mind and he will be proud of me!
    Thank you for the courses you are offering to us.

  • Marja van der Heijden 12/06/2015, 7:24 am

    Your report is the first comprehensive and detailed explanation of how to go about the knocking off process. Extremely helpful!!!

  • Marco Rafael 12/06/2015, 4:59 am

    Dear sir, I am very glad to have received your report. I am starting a business in cosmetics and the information received is very useful.

  • tn 12/05/2015, 10:02 pm

    The report is extremely informative and easy to understand as a student like me. It’s a great start so far.

  • Domingos J C Spinelli 12/04/2015, 10:21 am

    To be very honest with you and pardon my bluntness, I did not learn much more than I already knew.
    I expected to find more information about natural and sustainable ingredients such as nature; oils, extracts etc..
    At any rate it is a very good piece of information put all together

  • Gerard 12/04/2015, 7:22 am

    Very helpful and informative. I’m trying to educate myself.

  • Sevda Dogan 11/30/2015, 3:14 am

    I found the report helpful& comprehensive

  • Dr.usama 11/27/2015, 5:28 am

    This looks awesome as this will make me more competent as a cosmetic formulator…

  • Kristal Bull 11/26/2015, 3:54 am

    Useful primer on formulating natural products, thank you

  • Haile 11/25/2015, 1:58 am

    very helpful, professional, I am a chemist working on cosmetic manufacturing I will also contribute soon.

  • Gagandip 11/24/2015, 9:00 pm

    Great quick read for an intro to formulating. It is an overview of the process which will help you get started, but you still have to do lots of research on your own

  • Marian 11/23/2015, 10:02 am

    Really I’m very happy to find an information source in this field and I’m glad to say it is very useful

  • karen 11/19/2015, 1:47 am

    Thank you so much. Very insightful

  • Anj 11/18/2015, 3:15 pm

    This was extremely helpful.

  • michelle 11/17/2015, 11:31 am

    Info very information. I have already started doing what is recommended. Lots of work to go on to do. Did lip balm last year was very successful. Told I should patent it. Thanks for all the info.

  • Alex 11/16/2015, 9:51 am

    As there is not much free information about this specific field on the internet, this was an useful report

  • Abygale 11/12/2015, 9:11 pm

    Thank you for the report! I’m quite new at formulating – doing an awful lot of research on the web, buying recipes & trying them & readapting them, reading blogs & how others do things. I thought your report might help me make my own instead of readapting everything which takes sooo much time; not necessarily creating a “knock-off”. I thought for me, it did give some helpful info in the “re-creating” area. I still have so much more to learn, & will implement what you’ve shared as I learn & begin to understand more. Thanx again!

  • Arcadi 11/11/2015, 5:43 am

    I think it is very useful for beginners but also for more experienced people as a reminder.

  • Rhi 11/11/2015, 3:07 am

    Thank you for the report. It’s a great basic guide as to how to start for a beginner such as myself!

  • D'Mone 11/10/2015, 12:24 am

    Great Information and presentation..very informative..Thanks

  • Marek 11/09/2015, 2:07 am

    Every professional should carry this book wherever he goes! Very interesting!!!

  • Emily Chang 11/07/2015, 9:30 am

    It is extremely useful to me. It is very easy to understand and read. I have interest to know more from Chemists Corner.

    Thanks for sharing your experiences.


  • parisa 11/06/2015, 10:15 pm

    i found that book very useful and informative, great information for beginners. but you know i’m already in that bussiness and i’m looking for more pro information. can’t wait to get that mini-course by the way and thanks a lot.

  • Megha 11/05/2015, 11:04 pm

    Hello Perry, it was a great report. Explained in very easy language. It will be very useful for the beginners. All the best.

  • Loukas 11/03/2015, 1:23 am

    Very useful information. Nice tips on how to dup a cosmetic product. Very easy to follow. Thank you so much for sharing all this info. Excellent work.

    • Loukas 11/04/2015, 6:20 am

      Can’t we also start from a simple measurement of the water content (i.e. place the sample in an oven, evaporate all the moisture and weight the solids)? We could also have a measurement of the total fat content (i.e. extract the sample with a solvent, evaporate the solvent and weight the remaining fat). With these two simple experiments we can have a good estimation of the water phase and total oil phace percentage in the cosmetic product we want to duplicate. This could be our initial point before we start making several trials in order to match the composition of the product we want to duplicate. Is that right?

  • Suquished 10/31/2015, 5:39 pm

    An interesting and thought provoking discussion. I enjoyed reading it. I hope maybe to receive an answer some time of the question I asked on another page. Best Regards.

  • Alli 10/31/2015, 2:59 pm

    I really enjoyed this report. Especially for someone so new to this. I will be starting up in January to get my BS in Chemistry and cannot wait!

  • J. Eily 10/31/2015, 1:53 pm

    Thank Perry, 44 for the insightful report. I am not a chemist by trade, however I have blended and worked closely with a inventor of products, in addition I am now the fiduciary of those formulas. The 10 steps was wonderful and gives me a template inwhich to test savvy chemist and formulators as I seek members to join my R&D team.
    Thanks again,
    J. Eily

  • Sam 10/29/2015, 10:26 pm

    The book is really helpful for me. It provides information and knowledge that I need as a beginner.

  • Ak 10/29/2015, 12:55 pm

    Really informative. It was especially useful for persons thinking about entering the cosmetic industry.
    This was a great idea.

  • h.ghandour 10/27/2015, 9:04 am

    Thank you for your service and your time
    I am looking forward to starting the course

  • Huyen Anh Kieu 10/25/2015, 9:39 pm

    This is really helpful for me. I’m now a Chemistry student and really want to become a cosmetic chemist

  • Una 10/25/2015, 9:32 am

    I am really excited to found this website!! Many informations can lead me become more creactive!

  • Maeana 10/24/2015, 11:05 pm

    Thank you! It was very helpful to me as I just started learning about the cosmetic chemist world

  • Dawn 10/22/2015, 9:49 am

    Good read. Very informative. Thank you!

  • Joe Murphy 10/21/2015, 12:14 pm

    Report is great, an excellent resource and introduction!

  • Sharon C. 10/21/2015, 10:28 am

    I am a Soaper and a dedicated one at that. I am always looking to learn new things.
    I specialize in cold pressed soaps and have been able to build a pretty great business in a short period of time. I just developed a great knack for Soap making. I love to Soap. I also make an anhydrous body butter that sells phenomenally. I have received your e-book and I find the information very valuable. I like how you breakdown the percentages of over 1% and then the type of additive. The challenge is with the labeling of cosmetics companies are not always honest. Too bad you are not located in Canada as you seem like you would be a great mentor – something I am looking for. I will make this book a great reference point and will continue to look forward to receiving more information from you. Can you teach on how to scent your soaps so they have long lasting staying power – A big challenge for a lot of Soapers.

  • Ken Cogle 10/18/2015, 3:32 am

    Very impressed with the useful and information given, the method detailed in your approach is structured and provides an honest guide into building your own product. Thank you.

  • Moreen Kasule 10/14/2015, 2:18 pm

    Hello Perry, thanks for the book, i have not read it yet, but i will soon, just to inform you that i do not have a science back ground, i did Law and that is field, however, i developed an interest for starting my cosmetic line so i have done a few online courses and i have formulated a few, and they have been all stable, at the moment i am going to take on another course which allows to sell my products in Europe.

  • Sig 10/14/2015, 6:43 am

    Great read, great information, thank you!

  • neda 10/11/2015, 7:30 am

    Hi Perry,
    The Information was very useful to me ,your effort is much appreciated. I am looking forward to starting a mini-course as you mentioned.I have worked many years in cosmetic filed ,But now I know more about formulating cosmetic products.
    Thanks again for sharing your Knowledge Perry.

  • jorj 10/10/2015, 5:49 am

    Think you fre much

  • Sabrina 10/07/2015, 12:29 am

    I find this report very useful and informative. I’m already very interested in trying some of the methods in lab and would love to share how things went. The detail and organization of content was to point and helpful. Thank you :)

  • Abdul 10/06/2015, 5:57 pm

    Great info on the how to dupe a product

  • Koloniaina Rasolontsivery 10/06/2015, 1:36 am

    Quite impressive. Thank you for letting me know the reality of cosmetics. I have learned a lot about lie, fake, copy/paste, bluff! and expensive products just because of the brand.

  • Rugged 10/04/2015, 5:51 pm

    Thank you for providing us with this service.

  • Yh 10/03/2015, 2:29 am

    Concise and very easy to follow! Thanks!

  • Mathuros 09/28/2015, 3:16 am

    Informative and useful for anyone who is working in cosmetic industry.

  • satish 09/25/2015, 10:03 am

    thank u so much for ur information.

  • Amy 09/22/2015, 1:40 pm

    Very useful and helpful! So glad I found your website! Thank you for making it free too!

  • ollie 09/21/2015, 9:29 am

    I found reading this report extremely helpful. It gives lots of tips and makes creating cosmetics so much easier. thanks!

  • Colin Ogle 09/20/2015, 4:38 pm

    Helpful report thanks Perry. Cosmetics seem to be part science, part art and this has given me some confidence to have a go.

  • Sujee 09/20/2015, 10:17 am

    Very useful and quite impressed with the information given. Thank you, it’s going to save so much time for me

  • Sujee 09/20/2015, 10:16 am

    Very useful and quite impressed with the information given. Thank you

  • godwin chidinma 09/19/2015, 1:49 am

    I love it so much…it was the first I saw while I was researching and am sticking to it .I’d love to learn more too

  • godwin chidinma 09/18/2015, 4:28 pm

    I love it so much…it was the first I saw while I was researching and am sticking to it

  • Anastasiia 09/15/2015, 7:10 pm

    I am glad that I found this page in the Internet.
    I have always been involved in the cosmetic industry and can say it is very accessible for the beginners.
    Thank you for that interesting information.

  • jayce 09/15/2015, 11:45 am

    This is for keeps most definitely, so helpful! Looking forward to more learning materials for sharing.

  • Jackie 09/14/2015, 10:11 pm

    I did read the report, “How to Start a Cosmetic Line” and it was a great learning tool for me.

  • isra 09/14/2015, 6:47 am

    very helpful and great site

  • Mustafa Hamido 09/12/2015, 5:16 pm

    It is a useful report letting me to understand a lot of tricks in the formulation filed. I still need more to learn about formulation.

  • missie 09/11/2015, 10:47 am

    FANTASTIC piece to read and gain knowledge.

  • ib stowe 09/10/2015, 2:15 pm

    It was useful,thank you. Really looking forward to starting my own cosmetic line and working with you guys.

  • Mike Smith 09/10/2015, 2:11 am

    great job,keep it up.

  • Mike Smith 09/10/2015, 1:58 am

    The material is highly resourceful and loaded. It’s a wonderful guide for neophytes in comestic business. kudos for your good work.

  • Jessica 09/02/2015, 8:34 pm

    Great. I have learned a lot ~

  • orlando villalobos 09/02/2015, 2:52 pm

    Thank you again for giving me the opportunity to read more about Cosmetic Science. Since I am introducing this topic in our group for futher development, I see it as a way to come forward. The report is quite concise, it contains the main facts to start in the cosmetic science. I would appreciate very if I may get more deeper information. Thanks and congratulation for your post..Best regards

  • Dian 08/31/2015, 6:43 pm

    Very useful. I’m a beginning formulator and this is very useful in going through the process in a logical and methodical fashion.

  • Tess 08/30/2015, 5:29 pm

    Very good overview! thanks.

  • Melinda Ford 08/26/2015, 2:33 am

    Excellent as a beginner I found it extremely helpful

  • ashimolowo olubunmi 08/25/2015, 3:26 pm

    A valuable resource. Kudos to the team that assisted in putting this together.

  • Meghana 08/25/2015, 2:44 pm

    I found the tutorial well written and easy to follow for the beginner. However, it is a little too basic for me as I have a strong background in science and biochemistry. Additionally, I am attempting to innovate rather than duplicate.

  • Lasairiona 08/24/2015, 9:39 am

    “How to knock off a cosmetic formula” was an interesting read, although not as relevant for me as I hoped. I’m an absolute beginner (started reading about cosmetic science literally two or three days ago), but I’m sure it’s a great guide for people who are a little more advanced. I’m looking forward to reading more though!

  • Sevda Dogan 08/24/2015, 3:33 am

    Very good report; including useful information for the cosmetic lovers

  • Carrolle 08/23/2015, 6:46 am

    Thank you for the information, I found it very informative. I am new to the cosmetic industry and I’m looking forward to learning more.

  • Mary 08/21/2015, 12:32 pm

    Great report! All this info is really valious for my DIY projects. I look forward to receiving your next emails. Many, many Thanks!!

  • Lenny You 08/20/2015, 7:18 pm

    Very good to learn and thank you for your knowledge.

  • Jos'e 08/20/2015, 12:25 pm

    Having been only working in the cosmetic industry for the last 6 months! I found the report very informative and helpful, I will take guidance from it but I’m not trying to duplicate cosmetics. I will be working a lot with nail polish formulation and I’m currently working on separation issues so I will be asking questions and paying close attention to your blog, thank you for the information.

  • Andrea 08/20/2015, 5:28 am

    Thanks Perry, it’s a great job!
    Even if you’re not duplicating products its a great help if you have a lack of some product and need to replace them.

  • Nelly 08/18/2015, 10:47 am

    I am very new at cosmetic making having never actually made more than a deodorant. This report will be very helpful in the future once I get some more information under my belt. In the meantime, I am using it as a point of reference for my research. Thank you very much.

  • Bill Basinski 08/16/2015, 10:28 pm

    C’mon Perry. Get real. Your first suggestion is to find an analytical lab. No. First put a few grams in a moisture balance, and should
    you not have one, place the sample in a stability oven and wait a few days. Or get a little electric coffee mug warmer and let it boil
    off the water in an hour and see what the solids are. And look at the residue. What’s the oil to wax ratio? Any precipitation? Film-
    formers, etc.? Then do a pH, viscosity & SG. You also neglected to say that label statements are not always accurate. Some need
    updating. Others are damn lies. I visited Whole Foods and looked at the natural skin care products. Creams and lotions with no
    emulsifiers listed. Some list “alcohol” probably meaning fatty alcohols of uncertain identity. Preservatives? Oh, boy. It goes on.

    • Perry Romanowski 08/17/2015, 9:32 am

      Thanks for your comments. While it’s true that some unscrupulous or inept companies will have mistakes on their LOIs, most don’t.

  • LANCE0811 08/16/2015, 9:29 am

    I am a freshman of cosmetic,I have to read some books and know about more information of cosmetic. I think “How to Knock off Any Cosmetic Product” is useful for me.

  • Patricia 08/16/2015, 6:41 am

    I like the way this guide put the steps in an organized way. Easy to follow.

  • Jeff Martin 08/14/2015, 2:53 pm

    Conspicuous information yet helpful to have all the basics laid out for you. Helpful!

  • shima 08/13/2015, 1:08 am

    hi dear perry
    this book is really useful for me
    but yet i do not know how to write formula for my product :(

  • Jm 08/12/2015, 9:16 pm

    Helpful thanks!

  • Karim 08/12/2015, 5:25 pm

    Great ! All your courses are very comprehensive and complete

  • Kira 08/12/2015, 5:23 am

    A little over my head as a brand newbie to cosmetic chemistry. However will certainly be revisiting once I learn some more about formula ingredients.

  • Ms Jan 08/11/2015, 7:50 am

    A very informative and interesting report! Love it!

  • Michelle 08/07/2015, 12:31 pm

    Lovely guide! Very useful and to the point.

  • Rano 08/07/2015, 2:24 am

    Very useful info for formulators at all levels. Thank you!

  • Ahmad Bakhsh 08/07/2015, 1:17 am


    Really, this is the best method ever used to share the knowledge. it will be a great help for the new ones to learn fastly.


  • Maria 08/06/2015, 12:22 pm

    Although I am not really interested in duplicating a product, this book is very interesting, comprehensive and useful! Thanks!! And thanks and congratulations for your wondeful site chemistcorner.com!

  • Ahmad Bakhsh 08/05/2015, 12:14 am

    Really, Its good ” HOW TO KNOCK OFF A COSMETIC FORMULA”. Very useful and shortcut guideline to prepare the matching product of any quality.
    Its much useful.
    Let me know, either you can send me more materials like this.

  • marie 08/03/2015, 7:02 am

    the website is filled with useful information. I am new to the cosmetic formulation and the website is a great place to start educating myself. Thanks Perry!

  • Daniel Le 08/02/2015, 9:40 pm

    I found the information so useful and relevant in understand cosmetics

  • Dr Y K Gupta 08/02/2015, 12:11 am

    The report is very informative and a true guide for me .I have learnt many new facts about the cosmetology. Thanks Mr perry and Hope to get much new information and guidance to develop Herbal Cosmetics.

  • Val 08/01/2015, 9:38 pm

    Very useful information!

  • Darjan 07/25/2015, 10:41 am

    The whole site and the report as well are very useful to me. It’s just what I looked for, I hope that I’ll learn more. Thank you, Perry.

  • Mary Jackson 07/25/2015, 12:20 am

    very informative, thank you for sharing the info.

  • Imad Alhaddad 07/22/2015, 3:24 am

    Thanks for the huge information , i like this site cos we dont have in Lebanon schools that teach cosmetologie , thanks Perry you helped me so much :)

  • Ann 07/18/2015, 12:01 pm

    Thank you for this information. We are learning so much from your site.

  • S 07/16/2015, 11:12 pm

    I thought it was a useful introduction to DIY.

  • shirzad chamkouri 07/09/2015, 2:02 am

    Dear sir

  • Pete 07/09/2015, 1:18 am

    Hello Perry
    I though the How to Knock off Any Cosmetic Product repost was informative specially for those of us who are just going into
    cosmetic bussines and have little formulation experience.

  • Okwy 07/08/2015, 6:02 pm

    This is an amazing course for start up businesses…very informative. I am looking forward to even seeing interesting articles. Thank you so much.

  • Ann 07/08/2015, 10:33 am

    thank you Perry

  • Dave 07/06/2015, 1:32 pm

    The report seems to be a good compass. I was hoping for a bit more detail on determining the cut off line for the 1% ingredients.

  • Reba 07/05/2015, 12:31 pm

    This document was quite useful as I never had that in mind! It can actually help me improve to build my cosmetic brand!

  • Jill Neal 07/04/2015, 8:03 pm

    Since my family has been thinking about starting up an all natural herbal body, hair, and skincare business…this article was information that was needed. Thank you. Jill Neal

  • Christiana 07/04/2015, 11:47 am

    This article was informative. I am not a cosmetic chemist, however i just start formulating for my new hair care company.
    what i learn is how to test formulatin by changing one ingredients at a time until i get the reslt I want. I look fotward to learning more from this website.

  • Tanawan 07/04/2015, 3:07 am

    In topic of mining patent, i do not understand how can i know the ingredient of the formular. Could you please explain?

  • Didi 07/03/2015, 3:37 am

    Quite interesting very informative and eye opening

  • Justine reyes 07/02/2015, 8:19 pm

    Very informative and loved to read. Like me who is just starting as a junior cosmetic chemist it’s a very powerful tool.

  • K.M.M.Ebrahim 07/02/2015, 9:05 am

    Hi Perry,
    Thank you very much for giving me lots of ideas. Very informative and a good guide.

  • Tanawan 07/01/2015, 5:12 am

    I Thought the “How to Knock off Any Cosmetic Product” report was very useful. It’s like a compass showing me the direction to go through cosmetic science. Can’t wait to see more detail.

  • Donna 06/29/2015, 7:47 pm

    Very helpful information. Thank you!!

  • Kim Young 06/29/2015, 2:36 pm

    This is an excellent instructional. Although many of the steps are either common sense or easily found on the web, I like how the information is presented — broken down into discrete actionable steps with explanations and examples. Using a spreadsheet (your spreadsheet) is great advice. One new thing I learned is that lay-people like myself (not a real chemist, just a Mom making product for her family) can send product to labs for analysis. Thank you very much Perry!

  • Yanee Pongpaibul 06/28/2015, 10:59 pm

    Peery, thank you very much
    It is very informative, I learnt so much from this list of instruction.

  • Wacu 06/28/2015, 11:32 am

    I am considering making my own cosmetics at home and this site in general has provided me with much needed information. The report itself also opened my eyes to things I wasnt considering before. Thank You!

  • Greg 06/25/2015, 3:22 pm

    The information that you shared was very helpful towards developing a new product or knockoff.
    A lot of helpful resource websites as well.

  • Denise 06/25/2015, 9:17 am

    I learnt so much from this list of instructions! It helped me to realize my ideas were on the right track and it also taught me things I had no idea about! Very, very useful!

  • Panos Kontodaimon 06/24/2015, 2:04 am

    Hi Perry, thank you for your instructions. Useful information well set and organized,
    a useful guide for newcomers and checklist for oldies, and for product developers in other fields ….
    Still a lot of work to do !!!

  • jime 06/22/2015, 3:12 pm

    I things for information very good

  • Cole Olabisi 06/19/2015, 7:48 pm

    It’s absolutely informative. The simplicity of it, how you break it down for clear understandin is amazing.Please keep up the good work.

  • Olga 06/19/2015, 4:08 am

    Very useful! Thank you very much.

  • Raquel 06/18/2015, 10:41 am

    Very interesting report.
    I’d like to learn how can we use oils and glycolic extracts in cosmetic formulas.

    Thank you.

  • Itoro Ekanem 06/18/2015, 5:08 am

    I really learnt a lot from it, in fact am happy am subscriber yo Chemist corner

  • izzie 06/17/2015, 5:43 am

    Hey! The report was very interesting. It is very usefull to see how things really work in teh industry, so thank you for all the information!

  • Tiffany S. 06/16/2015, 3:40 pm

    Really enjoyed reading. Gave me a better idea of what cosmetic chemists do. Currently considering such a career.

  • Antonios Charalambides 06/14/2015, 4:55 am

    I found the report ” How to Knock-Off a cosmetic Formula, very enlightening and very easy to read and digest. The references therein are extremely useful. All in all it is an ideal report for a new formulator of cosmetic products. Congratulations for a precise, simple yet very informative report.

  • Julie 06/13/2015, 1:51 pm

    Easy read! Grab a cup of coffee, sit down and learn how to knock off a product.
    This will save you time and money.

  • aguther 06/11/2015, 4:52 am

    what a great help it was. :) #insiderinfo

  • Lydia Naadu Tawiah 06/11/2015, 2:15 am

    Thank you for all the information,am interested of creating my own cosmetic product,so couple of months ago i purchase Harry,s Cosmetology second hand book which was six edition,then i made some research on amazon.com i found out that there are new edition,
    please i will like to know if the six edition and the eight edition are the same.

  • Christine 06/10/2015, 6:35 am

    Hey Perry,

    Thanks for a great report on an interesting topic! It helps for a newbe in cosmetic science 😉

    All the best,


  • Zarina 06/08/2015, 7:10 pm

    Hi, Perry
    Great sharing.
    Really got lots of information for me.
    Good Job.

  • Deborah Green 06/08/2015, 5:09 pm

    Thank you for a very interesting report and for sharing it with us. It is easy to read and follow. Some day I would like to purchase your book.

  • JC Guerrero 06/08/2015, 1:55 pm

    Great advice and book, I am in fact going to purchase the Beggining Cosmetic Chemistry issue at amazon.

  • Nicole Williams 06/06/2015, 6:14 pm

    I am a newbie to the cosmetics industry and found the information in this report to be invaluable. Much thanks.

  • vandita 06/06/2015, 11:50 am

    thank u so much..i love ur reports.. :-)

  • Lukas 06/05/2015, 3:21 pm

    I Thought the “How to Knock off Any Cosmetic Product” report broke down the steps very clearly and concisely how to get started to reverse formulating any product. How to determine weight % solids, the 1% rule and plenty of online resources were very helpful to get you started.

  • Gifty 06/04/2015, 11:13 pm

    Thank you for your insightful book on cosmetics, it came at the right time as I am looking into making my own cosmetics. I like the fact that it point you to the right direction without all the unnecessary. It is very easy to follow for me and I appreciate all the external resources also.

  • Devesh Tejwani 06/02/2015, 3:33 pm

    I think this is a great report on how one should approach to become an formulator . The 10 step formula is in fact a beautiful thing because it contains exactly everything what companies do today with their competitors. I live in India. I am trying to find the book beginning cosmetic chemistry here , turns out that this book is not sold in India. Thanks Perry ..!

  • chaminda Jayanath manawadu 06/01/2015, 7:19 am

    I am new to the Cosmetic industry and so finding this forum is very important to me and hopefully will be a valuable source of knowledge for me.
    Thank you for your help.

  • Shanna 05/30/2015, 9:41 am

    Thanks so much! Really enjoyed the wonderful info:)

  • Anastasia 05/29/2015, 5:08 am

    It is very useful information as i am new in this field.

  • Gathy Brutus 05/29/2015, 12:53 am

    Great report, was pretty helpful…
    I am getting my samples together so that I can get to work… Fingers crossed!!

  • Brian 05/28/2015, 7:28 am

    I am new in this section , my studies that I made electrical section of engineering

  • Nancy 05/27/2015, 8:36 am

    This was very, very helpful – clear and concise. I hope to someday have a copy of Beginning Cosmetic Chemistry! I have a unique set of challenges as I’m doing this in Mexico and would like to source ingredients down there instead of importing everything. The more I learn the more likely I am to be able to do this. Thank you so much for sharing all of this excellent information.

  • Meg 05/24/2015, 2:53 pm

    Thanks, a very systematic approach.

  • daya pathak 05/24/2015, 5:17 am

    Very explanatory & Helpful.

  • Navi 05/23/2015, 9:16 am

    Really informative with an effective technique and great explanation!

  • rosabell jader 05/22/2015, 11:48 pm

    very good and very helpfull keep up the good job for the sake of huminity

  • mitra 05/22/2015, 12:06 pm


  • mahmoud 05/21/2015, 11:21 am

    Thanks a lot it is wonderful and full of information

  • Rajesh 05/20/2015, 11:51 pm

    Thank you for your free copy of How To Knock Off a Cosmetic Formula.
    So far what I have read, has been interesting and very useful and has also encouraged me
    To continue on my interest in learning how to create cosmetic formulas.

  • Johanna 05/20/2015, 2:59 pm

    I found the book filled of very useful information. Thank you.

  • Johanna 05/20/2015, 2:54 pm

    Very good general Information. I appreciate this website.

  • mohsen 05/20/2015, 2:09 pm

    Thank for your report it is a helpful one and appreciate it’s precious knowledge but it lacks the practice or practical part so if there further information it will be perfect

  • Venetia 05/17/2015, 6:03 am

    Informative and helpful.

  • Boyce 05/17/2015, 2:37 am

    love the approach and already Planning my first knock off. Look out Aveda, I’m gunning for you.

  • Carol 05/16/2015, 6:48 am

    I found your article very useful and interesting!

  • Victoria 05/15/2015, 7:18 am

    The report is so detailed even a person like me with no experience was able to follow the steps without any problems.

  • Fransiscus Chandra 05/15/2015, 1:48 am

    Actually the information inside your web is really beneficial for me. It is easy to understanding and the topics are also interesting for me to understand more regarding the cosmetics or cosmecuticals.
    One that I do suggest that you elaborate more regarding the modern cosmeceuticals like nano technology, elmusifier free, etc.

  • Stephen 05/14/2015, 1:52 pm

    I thought the course was a good read, but was a little too generic. Some good insight as to check the patents or about the 1 percent line, but other info like take the ingredients and guess the percentages till it seems right was a no brainer. thanks for the course though.

  • Munira Khambata 05/14/2015, 11:59 am

    This is indeed a piece of most valuable information that I have received. looking forward to learn more from you. Thank youVery much

  • sanjiv 05/14/2015, 5:39 am

    informative and very practical

  • Amanda 05/12/2015, 8:08 pm

    This was very informative, I have a lot to learn about the industry but this is a great guideline and resource. I will definitely be using this information.

  • Erin 05/11/2015, 10:58 am

    Hi Perry!
    Thank you for writing this pdf – this definitely shouldn’t be free! But I’m sure glad that I signed up, and “free pdf” was what drew me in. But if I had known exactly what a helpful starter it would be, I would have bought if you were selling, since the Beauty Brains book that I bought a couple of years ago was very helpful in determining what to use on my own skin.

    I am not a cosmetic chemist…from the comments above, it seems like there are a lot of people like me who aren’t, but are getting interested in cosmetic formulating and private labeling.

    I got interested in formulating because I developed a few little natural skin care “formulations” that work very well for me, and all of the family and friends who I’ve convinced to try it say that it helps them a lot. So I’m going to commit to bringing these to other ladies, in a formulation.

    The ingredients I use so far are all natural, since I don’t mind storing my products in the fridge. One of them I’m pretty sure isn’t legal to use in the U.S. in cosmetics, but I’m trying to find an alternative.

    And I’m so looking forward to learning more about cosmetic formulating, and finding safe* preservatives, so that I can bring my idea to market.

    Thank you very much for your help and information!

    • Perry Romanowski 05/18/2015, 9:59 am

      Thanks Erin! Good luck with your project.

  • Lola Simon 05/11/2015, 6:34 am

    Hi, thank you for all the information you share, it is very interesting. I’m a not a professional, just a home made cosmetics addict from Switzerland. I’m searching essentially information on ingredients that have proven effect on skin. But I’m only interested in natural ingredients for my formulations. Lola

  • James 05/09/2015, 10:11 am

    I am new to this and the PDF was a great introduction!

  • poopak 05/08/2015, 11:45 pm

    Dear Peery
    tnx a lot for sending this useful article.

  • Vivian 05/08/2015, 8:58 am

    Very useful. I am glad I came across this website. Will be experimenting with it. Thank You

  • DeAnn Jackson 05/07/2015, 10:39 pm

    I have been waiting to see a video that is this informative! Thank you, Thank you, Perry!

  • eugene 05/03/2015, 2:55 am

    Your lesson is one of the best u have ever read.

  • Angela D 05/01/2015, 2:53 am

    I am new to the Cosmetic industry and so finding this forum is very important to me and hopefully will be a valuable source of knowledge for me. It is in a simple and user friendly format and I like the fact that it is up to date.

  • genic 04/30/2015, 8:06 am

    How can I formulate a product formula

  • Giulia 04/28/2015, 3:24 pm

    Thanks Perry!! I’m an Italian student, I frequent a master in cosmetic chemistry and I am very glad of find you and your website! Yours guides, video and podcasts are great.
    Best regards,

  • Dominique Apostol 04/28/2015, 2:16 pm

    Informative and interesting. I cannot wait to learn more about this intriguing field.

  • Ukachi Igbo 04/27/2015, 6:23 am

    Quite detailed. Would like to make trial following the steps. Thanks.

  • Janani.S.R 04/26/2015, 9:47 pm

    I was just on a no man’s land … This article was so so good very informative . This will definitely make a change . Thank u

  • simone 04/26/2015, 9:33 am

    Hi Perry
    I just got through reading How To Knock Off a Cosmetic Formula and I want to thank you for sharing that information with me. I am doing research so that I can start my own natural and organic skincare line and the information contained in your book was extremely helpful.

  • betman 04/26/2015, 2:45 am

    the “How to Knock off Any Cosmetic Product” is very important for me, I should thank you for your useful information.

  • Jox 04/22/2015, 8:26 am

    I am glad. It is very useful for the beginners. Thank you for your effort.

  • Walter Wellman 04/21/2015, 1:47 pm

    I found this article to be VERY informative, and wish I had come across it a year ago. I am going to stay close to your website and the additional information you have on this subject. Thank you!!!

  • Donald Pullum 04/21/2015, 1:38 pm

    Throughout the phase of my career dedicated to possess/product development I followed much the same procedure as outlined in “How to Knock off Any Cosmetic Product.” I was too intuitive and not as orderly in approach, rather bumbled my way to success. The end product was formulations used in yarn coatings or polymer stabilizers. These 10 steps – 28 pages – should be an educational must for chemists and engineers. Progress is built on the shoulders of predecessors; the wheel has already been invented we only need to improve it.

  • Janine McNamara 04/20/2015, 5:44 am

    Thank you for a very informative website l hope it will work for me.

  • Gus 04/19/2015, 12:47 pm

    I read, “how to knock off any cosmetic product”. It was very interesting and your step-by-step method has much logic and and sense to it. I wonder why anyone would want to copy those formulations. They are standard formulations created by industrial chemists that were all trained by similar institutions.

    I read it to see if I could learn anything as I formulate cosmetics as well. But I found nothing new. Perhaps someone that is a neophyte might have use of your method but even then, why can’t they just formulate their own cosmetics, it’s not that hard. The Internet is full of how to videos. I appreciate your activeness but I really don’t understand your position on cosmetics. I know that there are many industry “agents” on the Inernet that defend the industry and also freaky anti-industry people. I have read a lot of it already and with more and more people getting symtoms of preservative poisoning and from other dangerous chemicals, I am sure I will see more of both opinions.

    All in all, I am glad that you have a forum where a dialog is happening. That has a great value regardless of your position. You might have gathered that I do not like the industry, especially in the U.S. where there is no regulation as to cosmetic preservatives.

    I hope to keep a dialog going with you and others like you so that we can improve this industry.


    • Perry Romanowski 04/21/2015, 2:34 pm

      Thanks for your comments.

      You are mistaken that there is no regulation. There is regulation of the cosmetic industry in the US. It is ILLEGAL to sell unsafe cosmetics. What more regulation is required?

      It is also not easy to just make your own cosmetics. At least in my opinion.

      People would want to copy standard formulas because those are the formulations that consumers want to buy. If you are serious about starting a line of cosmetics 90%+ of the population wants to buy ones that work the best.

  • ALPHADEL 04/17/2015, 3:46 am

    its very interesting concept to go through any formulation…love it

  • Lillian 04/15/2015, 6:13 pm

    It is very useful for the beginners. Knocking-off is what I am doing all the time.

  • Mardi OBrien 04/15/2015, 12:41 am

    I read the ebook. I looked at what I would need to duplicate the scent and it would cost as much as just going and buying the particular scent.

    Addtionally my remedial math skills are marginal at best. I would love to take your complimentary mini course, this may help me, but I can’t seem to figure percentages when blending my own stuff. I do need some sort of “natural” perservative in some of my products (which I have not offered for sale) for this very reason. I am not a chemist, albeit it would be wonderful, I seem to know how to measure and pour. When I say measure I mean cups and teaspoons, lol.

    Your information was easy to understand, I just don’t believe in my skills enough to actually bring it to fruition. :( Again the mini course may prove to be just what I need. I have told two friends about you and they have told two friends, and so on…

    Thanks again!

    Mardi O.

  • Lettie 04/12/2015, 10:44 am

    Addresses issues one needs to be aware of in dealing with organic formulations. A bit on the technical side.

  • Peggy 04/11/2015, 6:36 pm

    Thank you so much Perry, I really appreciate your research and published work. Please keep publishing.

  • Little Tabby (Tania) 04/11/2015, 5:34 am

    For me as a consumer – this helps to understand how cosmetics are manufactured and whether or not (usually not) to buy the designer/high-end ones.

    Thanks for this valuable information

  • Hayde 04/09/2015, 2:55 am

    I found it quite interesting although I have no intension to copy any product directly. The workflow seems temporally reasonable and feasible. Thanks

  • Claire 04/07/2015, 10:16 pm

    I loved it, very informative . Thank you very much

  • asfaw 04/06/2015, 9:38 pm

    very good and informative

  • Maria Vargas 04/06/2015, 8:47 am

    Lots of information, very useful and gives a good learning for people that is starting in cosmetics

  • Jennifer-Alayne 04/05/2015, 4:38 pm

    This download was full of valuable info. Thank you

  • Jennifer-Alayne Smith-Toines 04/05/2015, 2:55 pm

    Loving every minute of it

  • Christina 04/04/2015, 3:42 pm

    I’m so happy that i found this site! It is very usefull, well structured and provides a lot of informations, even for those who are beginners at the field of cosmetic formulation. Great job!

  • LMW 04/04/2015, 4:53 am

    I found the information quite useful. It actually made me ponder on wheather to patent my products or not.
    I do some of the 10. Steps in making my products from scratch. Have not purchased other products just to duplicate.

  • Jasmine 04/01/2015, 9:23 pm

    Loved the info I received from this site, very helpful and exactly what I was looking for.

  • Trang Vu 04/01/2015, 4:11 pm

    This book is really helpful and get me know a little bit more about cosmetic formulation.

  • hassan 03/31/2015, 7:43 am

    Thank you very much Peery
    I learned how startup formula
    I hope to learn us more
    thank you,

  • Rbn L 03/29/2015, 8:07 pm

    I am a researcher by natural instinct. Your material is an imperative tool for novices, “DIY’ and others, as well. It’s so rejuvenating to have a plethora of pertinent info in one place, haven’t experienced a site like this before and YOU required a response from the sent material! Many sites do not respond for feedback! Perhaps, only if paid for and that thought is filled with, dubiosity. However, I’m elated to have serendipitously encountered this site! So, “Hats Off” to Better Formulating!

    • Perry Romanowski 04/02/2015, 7:08 pm

      Thanks for the kind words!

  • Maria 03/28/2015, 10:57 am

    I thought that the packet was great! I loved how informative it was on what websites to use for patent information and how to go about creating products. The only thing I was hoping for were more advice on what tools/supplies I could use at home (not ingredient wise just equipment)

    Thanks so much and I look forward to the mini courses

  • Serena 03/26/2015, 5:52 pm

    Valuable information/ Looking forward to completing formulating course.

  • Diane 03/26/2015, 3:31 pm

    Thanks for the great article. Lots of good information there.

  • Kadriye 03/24/2015, 4:56 am

    Dear Perry,
    i think this little book has big informations. And very useful for every cosmetic chemist. Thank you…

  • Dimakatso 03/24/2015, 2:08 am

    Thank you very much for an insight into the world of cosmetic chemistry. Every line is an extra confidence for me. I want to start making cosmetics on a small scale and I am grateful for your info-packed writings. Keep up the good work.

  • JAMES MCDANIEL 03/23/2015, 11:52 am


  • Antonia 03/20/2015, 8:28 am

    Very good, excellent book, very clear easy to understand even for me, a holistic therapist learning to make natural cosmetics. Thank you

  • Ramsty 03/19/2015, 12:17 pm

    Thank you for sharing this useful information with us. I think the information was helpful and practical.

  • Yeukai Chibovero 03/19/2015, 1:49 am

    I am really interested in the course but i want to know if I can get a certificate at the end of the course.

    • Perry Romanowski 03/24/2015, 1:00 pm

      Yes, you get a certificate of completion if you finish all the quizzes.

  • Allison 03/18/2015, 12:32 pm

    I found this report very interesting, especially as someone trying to get into the field!

  • Lesley Thomson 03/15/2015, 9:05 pm

    Very informative, I make cosmetic and treatment creams from a recipe that I inherited when we bought our business. The man who formulated the creams was not a chemist, and neither am I although I would love to learn why our creams hold together and work!

  • piu 03/14/2015, 1:29 am

    Hi It was really helpful for me to understand the basics of cosmetics. Now i would like to know more about the cosmetic trials.

  • Margi 03/13/2015, 9:22 am

    Love your blog and love the e-booklet ! The e-booklet really broke it down in easy to understand language. I always enjoyed and did well in Chemistry, but I am far from being a chemist and I never dreamed then that I would be formulating my own skin care products today ! I so appreciate the responsible and scientific people on the internet that are so generously sharing their knowledge. There are very few. I can’t thank you enough !

  • B 03/11/2015, 5:11 pm

    I am looking so forward to diving into this ! I have cruised through it already and can see I will learn a lot.
    Thank you!

  • ramoo shankar iyer 03/10/2015, 11:58 pm

    really a useful information as we are in the process of getting into cosmetic manufacturing

  • Tova Langhans 03/10/2015, 8:23 am

    I’m so glad I found Chemists Corner! I have bookmarked their e-book to have it at the ready for quick reference. CC and Beauty Brains have become my go to sites while sipping my morning coffee. Thank you!

  • Rowena Allan 03/09/2015, 3:11 am

    Thank you for sharing your knowledge in an easy to understand way! I am not a chemist but as a marketeer of a beauty products found the information very informative.

  • Valerie 03/08/2015, 7:11 pm

    Just what I needed, thank you! I want to make my own products, using natural ingredients where possible, so a better understanding of the need for preservatives and alternative surfactants are on my need to know list!

  • Dawn Ireland 03/08/2015, 5:46 am

    A very useful source of information, very helpful in my business of creating skin care products.

  • marilyn 03/07/2015, 12:37 pm

    Thanks for your very informative information on your site. I look forward to receiving more and hope that you can possibly answer my email about using no preservatives when there is no water present using minimal ingredients. Many thanks. M.B.

  • Mae 03/06/2015, 5:55 pm

    Really enjoying this content. So many questions I’ve had have been answered!

  • Carolnee 03/06/2015, 8:32 am

    Very informative article presented in an easy to read and understand format, and it was free :))))
    Look forward to learning more. Thank you

  • Caroline 03/04/2015, 6:32 pm

    I started out as a biology/research/nutrition student in college, and ended up switching to being a business major. Now that I am starting my own anti-aging skin care line, I feel it will use all of my life-long gathered nutrition and sales/marketing knowledge, and your eBook will nicely fill in many of the missing pieces. Thank you so very much for freely sharing your information, and I look forward to the next series on formulating cosmetics! Well done and many blessings to you!

  • Daphne 03/04/2015, 11:27 am

    This is a great resource. I am in the process of starting a line of bath and body products. Experimenting with recreating the formulas of others is a great way learn about how to use some of the ingredients and exactly how they affect the end product. It is also a great way to determine what products can be substituted with minimal affect on the end result. Thanks for the information.

  • Bill Basztyk 02/26/2015, 8:35 pm

    Loved it. I have often said that there is no real new products under the sun, only reconfigured and re-engineered ones. Your book shows the details on how to reverse engineer a cosmetic product, the ideal starting point to make it better.

  • Rocio García 02/26/2015, 10:14 am

    I Think that this information is very interesting. I could learn much about making personal care products
    I really appreciate this help.


    My best regards

  • Genevieve 02/25/2015, 3:21 pm

    Thank you for the free report the information was very helpful!

  • Joan 02/25/2015, 4:14 am

    My passion is in beauty and persona care products. I finally have decided to start my own Cosmetics Label. This will create jobs and lift my people from poverty – I am however NOT A CHEMIST by any means. I need a layman crash course on formulation. Never would I think of myself as a true chemist- but as a business owner I think it’s valuable knowledge to have some background as to what you are formulating.

  • Ivana 02/24/2015, 3:45 am

    Two words… Life saver. I had no idea about how to start a product line until I found this. I have learnt so much…
    gained a lot of backgound knowledge to make my new venture successful.
    Your mini book report is also free which helps a lot of us who cant afford, aspiring to get the knowledge we need to
    make our ideas a reality.
    I really dont know how to show my appreciation for this but to become a success and give credits to you Perry.
    Thank you for helping make my DREAM come a reality.

    • Perry Romanowski 03/09/2015, 8:42 pm

      Thanks for the kind words.

  • Andrea 02/23/2015, 10:47 pm

    Wow! I learned so much! Thank you for this valuable book!

  • Olatunde Richard Ogunleye 02/22/2015, 12:28 am

    This is a wonderful site, I am sure that it is going to meet my expectations, but I will be grateful if you deal with me in a plain manner on the issue of my credit card thanks.

  • Nono 02/21/2015, 11:04 pm

    I find this very useful, direct to the point guidelines in breaking codes for getting the more or less the same product quality you want in a cosmetic.

  • Zoraida Santana 02/21/2015, 10:59 pm

    Thank you very much,
    I’ not a Professional Cosmetic Chemist, I’m a Cosmetologists-Hairstylis , I have my own private hair care line for the last 7 years, I’m formulating some of my liquid line, all my passion are on my formulations, I love to learn about formulation and ingredients , with your help I will be able to make great special hair care formulations.

  • Kelsey Luna 02/20/2015, 8:27 am

    Your lessons are truly so wonderful. After many years of trying to figure what business I want to start and what career would include all of my passions I finally have decided to start my own Private Cosmetics Label.- I am however NOT A CHEMIST by any means. Never would I think of myself as a true chemist- but as a business owner I think it’s valuable knowledge to have some background as to what you are formulating. Your lessons and mini books have really taught me so much in such a short amount of time. I am loving every minute of it! You make it simple easy steps to follow and it gives me the confidence I need to look professional in this new venture.

    Thanks so much!
    Take Care

    Kelsey Luna

  • windie m. trono 02/18/2015, 9:16 pm

    very helpful for starters like me…thank you!

  • Harry 02/18/2015, 12:29 am

    What a wonderful guide! I like the detailed instructions.

  • Vishwanaden 02/17/2015, 8:06 am

    It’s very interesting as a starting point.Thank you for sharing your knowledge.

  • Sam 02/16/2015, 4:02 am

    I skimmed over it and saw a lot of important points being made. I’m looking forward to reading it more and checking out other resources that are on your website. I heard about this site from an AIChE CEP article.

  • Tounie 02/15/2015, 11:32 am

    I am overwhelmingly optimistic that my formulating challenges will present with more ease in knowing and trying different avenues instead of grinding my teeth. Thank you for sharing your knowledge and understanding of a complex and secretive industry

  • Evelyn Fontanilla 02/13/2015, 5:05 am

    Very good material for starting formulators. It is also very good for those who would like to review on how to go about “duplicating” competitor’s formula

  • onels 02/11/2015, 2:33 pm

    Good, I like it, its working…

  • Jake 02/11/2015, 7:45 am

    Great report very helpful

  • Matthildur Thordardottir 02/10/2015, 3:02 pm

    Hi Thank you for this. It was very interesting reading and helpful for me. :-)

  • Chris 02/09/2015, 11:42 pm

    This is a good guideline to develop the cosmetic formulation in delicacy. It will be even better if included how to conduct stability test.

    • Perry Romanowski 02/10/2015, 7:59 am

      Hello Chris – we have a blog post on that subject.

  • joshua 02/08/2015, 8:50 am

    Awesome report. I really enjoyed reading it. I liked the manner in which issues such as what qualifies as natural or not and certification of raw materials were handled in the report.
    Well done Perry.
    Thanks very much for the insight.

  • Raheem 02/07/2015, 11:55 am

    Great information cant wait to read more articles!!!

  • el'amor 02/05/2015, 3:18 pm

    So much info and I love it it sure has help me. Meanwhile the online stores don’t send the purchased products to nigeria guess that be sorted out or are there other places to check?

    • Perry Romanowski 02/05/2015, 4:17 pm

      Yeah, I’m not really sure where else you might check. Alibaba might send to Nigeria.

  • debbi 02/05/2015, 1:37 pm

    Good info! Wish I had this info before starting to work on a formulating project for a client. I am a chemist and had little other than my qualitative and quantitative analytical skills when I started.

  • Karen 02/02/2015, 6:55 pm

    Great resource. Very informative and helpful. Thanks!

  • riviere 02/02/2015, 5:42 am

    Dear all
    I enjoyed the report, it was instructive.
    Thanks a lot

  • beautyqueen 01/31/2015, 11:02 am

    This has really helped me to realise that I can be a great entrepreneur and start to produce my own facial, body cream. its not as difficult as I thought I am so grateful to have come across your website as from now on I will keep my learning skills up to date and use your teaching about beauty chemistry. I want to be able not to worry about how to make great products specially as I am new to all the making from scratch part of it. So I want you to know that you have changed my point of view about the chemistry industry and that anyone who is willing can actually achieve what they want in the beauty business.

  • Marie 01/25/2015, 7:15 am

    Very interesting and informative. I am not a cosmetic scientist but I am formulating natural ingredients to make my own natural skin and hair care line.
    I am very new to this site (not even a week old) but I have learned soo much already, some truly amazing and some ever so shocking.
    Although I am not at the stage where I will be knocking off just yet, the report has given me insight to how to read formulas, % rule, how to source information and so much more.
    There is soo much amazing information on this site, I know it will help me to better formulate my products.
    Thanks for caring and sharing.

  • Jeff hogrefe 01/24/2015, 1:58 pm

    I have been working on a few formulations over the past 2 months. The article was encouraging in helping me realize that I am on the right path. Thank you for the knowledgable report

  • ehkamul haq 01/24/2015, 4:09 am

    Thank u very much for providing such a great information, i have learned very much from this info but i think u should provide that how to identify the cast of the raw material so that we can add the specific quantity to the batch, we should know that how much cast of raw material should be added in percentage because there is not any company who disclosed their formulation on sample products so u should provide a best info about how we identify that.

    Thank you !!!!!

  • Maria Ruiz 01/23/2015, 2:00 pm

    Muchas gracias por su libro acerca de como duplicar un producto cosmético, es muy bueno y de verdad, da muy buenas bases para comenzar.
    Solo haría falta indicar para aquellos que no conocen; el manejo porcentual de las formulas para facilitar su costeo y su adaptación a lotes industriales.

    Muchas gracias por compartir este tipo de información, perdón por escribir en español, es mi lengua materna y me queda mas fácil expresarme en ella. Soy Química Cosmética por experiencia pues trabaje 11 años en Investigación y Desarrollo de productos cosméticos en la industria

    Maria Ruiz,

  • Ghazal Haj Khaleel 01/21/2015, 9:34 am

    Thank you very much , great informations …

  • Jasmine 01/20/2015, 5:18 pm

    I loved it, I like how detail it was for telling you the steps. But i did not see it mention anything about start up cost and how much it would cost to to do all of those things

    • Perry Romanowski 01/21/2015, 2:24 pm

      We have another post about that. Do a search on the blog to find that article.

  • Kelly 01/16/2015, 6:30 am

    Informative but not as detailed as I was hoping for. I am trying to create a hair product and have all the ingredients but am having a hard time finding information of how to actually get started.

  • Emma 01/12/2015, 11:54 am

    Great general and basic information for someone starting out in the field! Thanks for sharing. I am eager to receive more articles from Chemists Corner!

  • Adib 01/12/2015, 12:36 am

    This report is very good for newbie cosmetic chemist & cover the basic things we should know to duplicate cosmetics.
    Informative & practical report.

    Thumbs up to Perry!!

  • ra 01/11/2015, 4:02 pm

    Dear Sir

    Will please informe me more about the cosmetic formulating coarse


  • Omayma 01/09/2015, 10:57 am

    Very useful thank you!
    I look forward to learning more and more :-)

  • Neha 01/09/2015, 9:41 am

    Its realy a great website very helpful and very educational,hope to learn many things ahead

  • Peter 01/08/2015, 3:10 pm

    Very helpful for beginners and advanced developers. Good ideas to become an expert by knocking off competitors formulations.

  • Amy S 01/07/2015, 9:56 pm

    Wasn’t so sure at first considering a lot of ‘how to’ things are (not helpful) but this was very helpful!

    • Perry Romanowski 01/08/2015, 7:26 am


  • pat 01/07/2015, 7:02 pm

    Hi Perry, I quite enjoyed your very informative tutorial on Cosmetic Formula Knock-Offs. I am a newbie when it comes to cosmetic formulating and so far have managed to formulate some great products, so much so that I don’t think I would ever turn back, your knowledge is exactly what i’m looking for, keep up the good work!!, I do have a query on step 7. Would it not be better to make small batches at 100 gr. rather then 400gr.? Thanks

    • Perry Romanowski 01/08/2015, 7:27 am

      400 g would be the minimum. Making 100g batches are too small since it introduces significant weighing errors

  • Hamid Gani 01/06/2015, 9:56 am

    “How to Knock off Any Cosmetic Product” was very informative and make life easy to get to know and make own cosmetic. Thank you for the honest and unselfish informations.

  • cassie 01/06/2015, 8:25 am

    Thank you so much! It’s very useful

  • Bernardo Mora 01/05/2015, 9:47 pm

    Very good job. Cool to educate people on cosmetics chemistry, so we can make educated choices.
    I salute your work, well done

  • Alicia 01/05/2015, 7:17 am

    This was a great eBook for anyone interested in learning the steps to take to make a product that you find on the shelves now. Thanks for breaking down the steps and making it seem less daunting! I hope that I can utilize this method to create some natural products at home and better understand the industry, should I decide to create a skincare business.

    All the Best!

  • Christina 01/02/2015, 3:43 am

    extremely helpful!

  • Tawanna 01/01/2015, 10:13 pm

    I’m starting my own cosmetic products and this site was very helpful with my research

  • jane 12/30/2014, 3:01 am

    Its wonderful how you are so inspired to share with others. If i had more info this would have long orobably been my profession since college. Thank you for simpkufyibg and demystifing cismetic chemistry. The report is intuitive but lets me know im on the right track with my developpment project. Ps i love the new site.

  • Babs 12/29/2014, 3:11 am

    A very good resource. I found it useful in the sense that I have always wanted to copy a successful moisturiser but never thought of these steps.

  • John (braveheart) 12/27/2014, 7:50 pm

    It is like a compendium of all the knowledge I have tried to amass in the past two years of researching the industry. Perry makes it very easy to grasp and follow. Thanks.

  • Mahavir 12/27/2014, 11:07 am

    I learned about duplicating pastes, creams and other compounds; not only cosmetics but other products also. It was learning this specific art, at one place. Rare !

  • syed abdullah 12/25/2014, 2:45 pm

    merry christmas
    wealth of information about cosmetic, detail comments will follow soon,thanks best regards

  • tari 12/21/2014, 4:45 pm

    Hi, i loved the opportunity to read about cosmetic formulation. i am a chem student. My Grandmother use to make her own skincare products. She was a wise woman and taught me many things about herbs and mixing them for my skin.When she passed I set this aside for years but I would one day love to have my own skincare line. The cost to develop products is very expensive but I know what to look for and questions to ask if I should decide to buy the base already made until I finish school.

  • Margreat 12/18/2014, 12:12 am

    This is a VERY thorough guide to re-creating a product. It gives a lot of information to anyone wanting to know what is required to copy a cosmetic product. At the very least, you will need to get a LOT of the product you’re trying to reproduce. Who knew? I’m glad I do this only as hobby! Thanks very much for providing it.

  • Veronica 12/16/2014, 11:10 am

    I don’t know how I found your website, but I am so glad I did. You share a wealth of information. Thank you very much!

  • Roza 12/14/2014, 3:27 pm

    Thank you so much. Lots of useful information. :-)

  • Rosa Kazemi 12/13/2014, 3:56 am

    Im R&D expert in a company in Iran which works on beauty products.We are working on new style Gel now.I have a problem with shining.I want use sth for increasing shining in Gel products.
    Would you please help me?

  • Mazuru Gundidza 12/11/2014, 11:42 pm

    It is very useful for anyone involved in new cosmetics manufacture. I need more information like this .
    Prof. Gundidza

  • Ashwani Khanna 12/11/2014, 6:44 am

    Very help full & informative .thanks

  • greg barton 12/10/2014, 12:55 pm

    I really enjoy these presentations. Thankyou

  • rahul rao 12/10/2014, 11:03 am

    Thanks a lot to join me as a group member of chemist corner. I new in this field your ebook is so helpful to me.
    I hope for further guidance from you in future.

  • Paulene 12/08/2014, 6:00 pm

    I am not a professional cosmetic chemist. I do my own DIY formulations at home. Due to my sensitive skin, I have a couple of products that I intend to duplicate. Prior to reading your excellent article, I actually did steps 1-3, analysing ingredients and making decisions on substitute ingredients based on my customised intended outcome of the product, but skipped step four and went straight on t0 step 5. I will admit that I have not successfully duplicated any products as yet. However, I am confident your article will lead me in the right direction.

    There is a lot of excellent information and methods that as a complete amateur and someone that did not do that well in chemistry in school would never have thought of. Thanks so much for such generosity in providing this.

  • june lim 12/06/2014, 8:58 pm

    More natural formulas, skincare ,cosmetics ……..thanks a lot it helping me find my way as i want it before.

  • Yong Rafidah 12/04/2014, 9:40 pm

    Dear Perry,
    First of all …Thanks for the fabulous ebook…I learned unofficially on how to duplicate cosmetics formulation during my early hands in R&D Lab. I NEVER know that there’s another systematics way to handle this crazy job until I found the ebook…

    Thank You so much Perry.. you are the man..

    Love from Malaysia

  • greg 12/04/2014, 10:53 am

    I feel the article will be a motivator for us. We are looking to improve and add to our existing products.

  • Joycelynn Nelson 12/03/2014, 9:38 pm

    The content is very helpful.

  • Noura 12/03/2014, 2:14 am

    Hi perry!
    I’m really thankful for that informative free copy..it helped me alot..
    Thank you so much

  • fortune 11/30/2014, 7:07 am

    Thank you very much for d book… I read it and am stil reading it.. It contains a wealth of great information and its easy to understand. It was just the right book for a beginner like myself. 1ce again thank you perry

  • Chayaphon M. 11/29/2014, 9:26 pm

    Right now, I’d just only granted all over the issue but still not in details. However, I’ve found and felt that it have to really benefit me
    very much whenever I read it all over in details. I have to “Thank You” very much for your very benefit “How to Knock off Any Cosmetic Product” issue here.

  • A baker 11/29/2014, 4:24 am

    Informative and useful.
    Thank you.

  • sfe 11/27/2014, 8:56 am

    Great resource for those of us trained in organic chemistry and wanting to broaden our experience in product chemistry.

  • Shani Vermeulen 11/27/2014, 6:49 am

    Very useful and informative thanks! It confirmed what I’ve learnt in the last 25 years about formulating and is a nice summary.

  • Mr Amit 11/27/2014, 12:13 am

    Hello sir,
    I want to learn how to make face peel mask.
    If something you have to help me.

  • Alessandra 11/26/2014, 4:20 am

    Hi Perry, I found all these information very interesting and useful.
    Thanks a lot!!

  • Ivana 11/25/2014, 4:59 pm

    I’m a self taught dabbler in diy cosmetics.”How to Knock off Any Cosmetic Product” is well rounded and incredibly helpful. I am about to attempt to knock off a product, and will be using advice from this book!

  • Gopal Sharma 11/25/2014, 12:02 pm

    Hi Perry
    I really want to thank you for all the update and latest technology information about the cosmetic industry. As i am a student of cosmetics i really appreciate your blogs and your work. I read them to get information about latest trends really good job man.

  • Jeanne 11/24/2014, 8:08 pm

    I just briefed through the booklet that was emailed and am very excited to learn more as I am interested in patenting my own cosmetic line!

  • RICHARD HALL 11/24/2014, 6:40 pm

    I thought how to knock off any cosmetic product,Was a great report. I can use it. I have a great need for this kind of information,I am thankfull i got it

  • Johan 11/24/2014, 2:54 am

    The cosmetic knockout article is great for beginners and experienced cosmetic makers, because if one uses the knockout approach you make cosmetics. This does not take anything away from the method, in fact it is a wonderful learning school for almost anyone interested in cosmetics. The article also reflects the huge experience of the author, which he shares freely with everybody.

  • Lori Lagos 11/20/2014, 11:08 am

    I read it and I love it. Thanks for publicate it. I have a little cosmetic formulating experience and it will help me a lot. It is comprehensive and logical. Thanks again!!

  • April Luna 11/17/2014, 10:15 am

    Hi, Thank you so very much for all this info….I have not had a real chance to read everything you sent as of yet. However I am very serious about learning as much as I can about this subject.
    Thank you

  • Joni Catanzarite-Pecsi 11/17/2014, 7:50 am

    I have been given the task of trying to duplicate a know product, and all I know about the product is the ingredient listing along with a 1.5 oz sample.. I was actually able to pinpoint the fragrance due to being an odor coordinator at a previous job, but had no idea where to go from there since this product contained a lot of extracts and a few surfactants that I had never worked with. So while doing my research I stumbled upon “How To Knock-Off Any Cosmetic Product” and knew it would be something beneficial to me, and after reading it I am happy to say that it has been extremely helpful. Being an analytical chemist, with primarily pharmaceutical experience, I feel the need to research all I can prior to trying to making a sample batch. This document has a wealth of useful information, and the 10 step approach has been extremely helpful to me.

    Thank you for providing this information.

  • gam 11/16/2014, 3:58 pm

    It was a great book and I still reading it.
    it learns me things that I don’t know befor , it is absolutely helpful like a guide to me since I am not an industrial

  • Kathy Jurn 11/15/2014, 5:10 am

    I found your book regarding how to duplicate cosmetic formulas very interesting and informative. Now to get to work!

  • Tanvir Abdur Rahman 11/15/2014, 3:37 am

    Thanks for give the opportunity to leave comment. However we make Hand Wash and use SLS, Glysarin, Fine Gum or 600 Gum, Citric Acid, HB and MPS(as preservatives), but the problem we don’t get enough foam and after washing don’t get softness in hand rather hand becomes dry. We face more problem like in component we use pearl color but with Fine Gum pearl doesn’t stay for long.
    So please suggest me about High Foaming as well as moisturizing hand. And also suggest for a better Thickener.

  • keyshawn 11/11/2014, 6:03 pm

    thanks for the information that you sent to me it is helpful and I’m looking forward to learning more

  • Jennifer S. 11/06/2014, 10:15 pm

    I thought I knew a lot about the business of beauty … I have been involved and studied this industry since I could practically read. I have done very well for myself and was hopeful of branching out on my own. Without knowing where to start I downloaded “How to Knock off a Cosmetic Formula” from Chemist Corner, to see if I would be able to learn anything I didn’t already know. I truly was ENLIGHTENED and was more than SATISFIED with the content and information that was given to me. It was extremely helpful and full of good factual information on beginning your own product resembling your favorite brand name. I have to say after reading it I feel a lot more confident dipping my hands in this MASSIVE industry. I would also just like to thank Perry for thinking of us “little guys” who want a chance to make something great. The knowledge that he shares on Chemist corner. Com and in his “How to Knock off a Cosmetic Formula”. Is extremely useful and truly blessing to anyone searching for a helping hand.

  • Anna 11/06/2014, 10:07 am

    The information I read is awesome. There are so many things that I learned and I was speechless. Thank you a million times for sharing the information with us. Now I can do things I couldn’t do before

  • boudjemaa 11/05/2014, 3:39 pm

    Glad to join this Website.
    I am a chemist and I want to engage in this nice profession of formulating Cosmetics. I found that the report will be very helpful for beginners. I will be very glad to learn more from you.


  • Juthi 11/05/2014, 2:37 am

    The report is very informative and will be useful to me if I need to duplicate any cosmetic. Well done and I’m looking forward to more information !

  • Mariana 11/03/2014, 12:12 pm

    Thank you!

  • Glenn Forrest 11/03/2014, 8:00 am

    I downloaded your pdf “How to Knock off Any Cosmetic Product” and am amazed not only with its “Knock off Any Cosmetic Product” content but the depth that it goes into cosmetic chemistry in general.

    Thank you so very much,


    • Perry Romanowski 11/03/2014, 12:33 pm

      Thanks for the kind words Glenn

  • Joanetta Ramos 10/28/2014, 10:06 am

    So far very informative, and I look forward to learning more. Thanks for giving me a solid starting point.

  • cristina 10/24/2014, 9:08 am

    Very useful, thank you!

  • Catalina Rombaut Grosfeld 10/24/2014, 6:58 am

    thank you for such honest and clear information !
    really useful !

  • kareem El-Rweeny 10/19/2014, 2:16 am

    Thank u vvvvvvvvvvvvvvery much

  • Tobiah Belcher (PUSH products) 10/18/2014, 10:51 am

    Recently I sent Mr. Romanowski an email and he responed back asap. Right there I know that his program would be something of interest. I also benefited from the information I was looking up. I even ask him some questions that had nothing to do with him or his business and he answered It with no problem. It’s not many people out there that will take the time out to help you. And Mr.Romanowski showed me that he can take the time out email attend to other needs regardless if their members or curious researchers. I just want to say Thanks to Chemistry corner and I definitely will be enrolling in your cosmetic science course online.

    Best regards,
    PUSH products
    Tobiah Belcher

  • Zevia 10/17/2014, 6:32 pm

    The tips are so helpful !

  • azade akbari 10/16/2014, 1:25 am

    Dear perry
    hello ,The information is so helpful . It encourages one to take the giant step and move ahead.
    Thanks for the information, I appreciate

  • Dakalo 10/15/2014, 7:51 am

    I found it very useful, it gave a lot of great ideas and starting points. I feel that it is however very “American” in some aspects e.g. in terms of how to get hold of some of the ingredients and in terms of the advice about patent search. Thanks all the way from South Africa though!

  • Sarah 10/14/2014, 10:39 pm

    I just graduated with a degree in Pharmaceutical Chemistry and have always been interested in learning more about cosmetic formulations. Thank you for getting me started on the right path!

  • Edison Subala 10/14/2014, 8:17 am

    Very helpful and informative. It cut down my research in half and inspired me to go for the cosmetics industry. This is truly helpful specially to those who are starting in the field. I am actually looking for somewhat “rule of thumb” or ratio for basic formulation on derma products like how much needed for at least the basic ingredients.

  • Melanie 10/06/2014, 2:41 pm

    Very helpful way to use another product as a starting point to develop your own. Saves a lot of time. The one thing I didn’t find helpful is that is says you can search the us patent office but their search engine is difficult to figure out. I wasn’t able to look anything up. Lots of helpful info though!

    • Perry Romanowski 10/06/2014, 5:19 pm

      Use Google Patents to search patents. It’s much better.

  • serene 10/06/2014, 7:02 am

    Very informative and helpful. Thanks so much.

  • Marisa 10/03/2014, 8:03 am

    Thank you for your report. I think it is interesting and that have good ideas, for people that wish start learning in this area.
    Best regards

  • Tan 10/02/2014, 3:28 pm

    I have a background in chemistry and have always had a keen interest in skin care formulating. I found the ebook very informative from many perspectives including the analysis of ingredients in products to what you can and cannot do when patents are held on specific ingredients in formulations, and much more… Thanks!

  • Mshazi 10/02/2014, 2:09 pm

    very helpful information thanks

  • Mshazi 10/01/2014, 1:58 pm

    wow , helpful tips love it

  • Kathy Patton 09/29/2014, 5:46 pm

    Thank you for putting together this information and making it available for others to use. The information is straightforward, concise and very useful.

  • stephen muhoro 09/28/2014, 12:31 pm

    i would appreciate to learn more on cosmetic making.

  • John 09/25/2014, 5:32 am

    Very useful information for DIY Skin care, well worth the read

  • vidhya 09/24/2014, 6:50 am

    Thank you for the notes. It was very useful to me and I would like to appreciate your effort

  • Kevin Johnson 09/22/2014, 3:41 pm

    The e-booklet is filled with plenty of common sense things that can be performed to facilitate one’s learning experience. I’ve used other patent’s in the past to analyze medical instruments. What a great idea, in extending that venue to include cosmetics, especially if the patents have been well written because one may discover an entire chain of patents that cover the historical development of the patent that you are intent on learning from. Suggesting list development of agents, then linking them to their general precursor categories based on “action” is logical and a no-brainer if you’ve had any form of chemical analytical training. However, for individual’s that haven’t had that experience, its a great idea in learning about ingredients and how they may react in isolated conditions. There are many valuable tips in this book as I was surprised by the thoroughness of the author.
    Well done, indeed,

  • Judith 09/22/2014, 1:08 pm

    Thank you! The information in the “How to knock of” will prove indispensible as we are just beginning to design our cosmetics line! I will definately refer to it often! I am certain that we will truly benefit from all of your research and hard work! Much appreciated, thanks again!

  • chris 09/22/2014, 11:05 am

    hi Perry thanks so much for the great deal of information and your frankness.However,I am a beginner wants you to help me know where to start.This aspect of science is fascinating and i really love to do it.Thanks

  • Ali Raza Asif 09/21/2014, 11:56 pm

    Dear Sir,
    Thank you so much to reply me. Again Thankx. I want to study related manufacturing of cosmetics. Please tell me procedure of study. I am B.Com and now working in Abu Dhabi. Can you suggest me some books so that i can get formula of fairness cream.

  • Anonymous 09/21/2014, 1:32 pm

    This is great for beginners or anyone who wants to dupe high-end cosmetic products. Thank you.

  • Stella Bangura 09/19/2014, 11:48 am

    Thanks so much for putting this together and making it available. It is amazing and extremely helpful.

  • ILIANA 09/17/2014, 11:48 am

    Loved it!, its very helpful, lots of things i usually do already and some other new ideas.

    • Ali Raza Asif 09/21/2014, 11:59 pm

      Hi Dear ILIANA,
      I want a formula of fairness cream. I belongs to Pakistan but now a days working in Abu Dhabi as accountant. I want to manufacture a fairness cream. Can u help me?

  • Angela K. Sams 09/15/2014, 3:05 pm

    This report is very informative. It has saved me a lot of time. Thank you!!

  • Patricia 09/14/2014, 5:22 pm

    Thanks, this information has been great for a first contact with cosmetic formulation.

  • Miriam 09/13/2014, 11:27 pm

    I have been in the industry for more than two decades. Finding this site for sure will make my life easier. The site is very formative. I hope i can join the discussions and share my inputs and experiences. Thank you so much for the people behind this.

    • Ali Raza Asif 09/22/2014, 12:01 am

      Hi Dear Miriam,
      How are you? I am Ali Raza belongs to Pakistan but now a days working in Abu Dhabi as accountant. I want to manufacture a fairness cream. Can u help me? I will very thankful to you for all life.

  • Ime 09/13/2014, 5:04 am

    The report was very informative and a great resource for ‘starters’ in cosmetic science; and all the while I kept thinking, “all these for free?”. Thank you so much for taking out the time to help others.

  • Jessica Aurora 09/12/2014, 10:52 am

    There were some very useful tips on different websites to find product information and packaging.

  • Debra Womack 09/10/2014, 2:42 pm

    Thank you very much. I really enjoyed the article. I look forward to the new information coming. Thank you so much.

  • Maite 09/08/2014, 2:13 am

    Thank you very very much!
    I’m a total beginner, so this report helped me a lot! Thanks for your time.

  • Kristen 09/07/2014, 8:21 pm

    Very useful information. Thank you for making it available!

  • Shanell Edwards 09/05/2014, 4:30 pm

    very useful report, can’t wait read more of them in the near future!

  • Dana 09/04/2014, 4:19 pm

    Thank you for doing this and being so generosity in sharing all your knowledge.

  • Ang 09/02/2014, 12:46 am

    I thought the information given was very comprehensive and detailed.

  • Cindy 08/31/2014, 1:12 am

    It’s covered the basic of science in cosmetics in a comprehensive approach. I found it useful and makes me want to further explore. However the podcast under chemist corner most episodes don’t seem to play anymore.

    • Perry Romanowski 09/02/2014, 12:54 pm

      Thanks for letting me know. I’ll see if I can fix it.

  • zafe li 08/30/2014, 3:44 pm

    Thank you for your short course , it was very informative , breaking it down nicely. boy there is a lot to know!!

  • lulu 08/29/2014, 2:36 pm


  • Siddharth Jain 08/27/2014, 2:53 am

    It is a very short but comprehensive crash course kind of a thing for people new to industry. Good compilation. Keep writing!

  • Steve DeCesare 08/25/2014, 11:03 pm

    Hi Perry, your guide was very informative, and was a relief to know many of the steps I take were similar to your methods. Love your site, has taught and saved me a lot in the short time I’ve been browsing. Looking forward to the minicourse

  • shrads 08/25/2014, 10:50 pm

    wow !!!!
    perry, Its very useful & wonderful for newbies in cosmetic world.
    Thank you for your effort and for sharing your knowledge.

  • Akram 08/22/2014, 10:40 am

    Really helpful…. It is very clear and perfect documentation. We expecting more works like these… Also we are thankful to Chemistry corner Team.

  • Bhawna 08/22/2014, 2:58 am

    Thanks perry for such an informative report..lookng forward for your future mails for cosmetic courses.

  • Sandra 08/21/2014, 3:35 pm

    Thank you for putting together such a helpful mini ebook! I look forward to putting it to good use.

  • Sandra Britton 08/18/2014, 1:06 pm

    The report is very useful and informative. I am looking to create a fresh product but looking for ingredients that would blend with the one that I have. Without losing too much of the main ingredient.

  • farzaneh 08/12/2014, 1:49 am

    Your report is really helpful to formulate cosmetics products. I am very excited for the courses given by email. thank you so much

  • farzaneh 08/12/2014, 12:23 am

    Dear Perry
    I read your report , I think, there is a lot of useful information about cosmetic products in it, I eagerly wait to have another report of you about formulation of cosmetics. thank you so much
    my facebook is: farzaneh dehghani

    with best regards

  • D.Taylor 08/09/2014, 6:31 pm

    WOW, What an awesome wealth of information! I absolutely love this site and ebooks

  • Latasha shells 08/08/2014, 11:11 am

    I found this information very helpful. I was able to download a plan in my mind and a idea of what it’s like to start a cosmetic business and a know how. I’m thankful for the help of the download that was offered at no cost. Thank you very much. I appreciate it. It gave me good listening skills to receive the message and details and awareness of the pro and con basics the truth. Awesome! !!

  • Lyn Hughes 08/03/2014, 4:11 pm

    I have over 35 years experience in multiple aspects of industrial chemistry but had never worked in the cosmetics field. I now have to develop a skin lotion. Your report has given me a great insight in how to get started.

  • Marleen Maras 08/01/2014, 1:45 pm

    I am new to formulating so this information was new and very interesting. It will help me better understand and plan my future formulating plans.

  • dean grillo 07/31/2014, 10:48 pm

    i am returning to the profession after many years so this was an excellent refresher. It helped to jump start my memory to recall what i already knew but forgot. it also taught me a few things and gave me avenues for further research. Thank you.

  • Jose 07/28/2014, 10:57 am


    “How To Knock-Off a Cosmetic Formula” report is interesting and arises the reader’s interest on cosmetics manufacturing.

    Having said that and having expressed my gratitude for having free access to it , and must say that I expected more information about:

    how to figure out the class of ingredientes.
    how to search for a cosmetic patent and get its composition. For example, how to get the composition of Evening primrose shampoo for dry hair by john masters organics.
    how to analyze a formula.

    Additionally, I missed information about:

    the purpose of each class of ingredient
    the concentration range recommended for each class of ingredient in the diffent types of cosmetics.

    In a word, any publication should fulfill its purpose and I missed critical information in “How To Knock-Off a Cosmetic Formula”. But it was free and I am thankful for it.

  • samantha 07/27/2014, 4:50 am

    Recently graduated pharmacy in Brazil and was thinking of going forward in specializing in cosmetology. This book was a great starting point, its informative and was excelent for it opened up my mind a bit more. Great job!

  • callixtus nwaehiri 07/25/2014, 9:35 pm

    I need help with my compounding, when the temperature rises above 80 degrees the cream separates but when is below 75 degree the compound maintain its creamy consistency. I use coconut oil, grape seed oil, sunflower. I need some suggestion of how i can come up with better product that will not change as the temperature changes.

  • Jennifer 07/24/2014, 2:15 am

    this link is very useful to me. I had just started working in application department and I still have a lot of things to learn. Does anyone have any useful links on formulation of PC, HC, AC bases, application of fragrances to PC, HC, AC products, solubility issues, stability test of fragrances in PC, HC, AC products??
    appreciated and many thanks

  • Diana Ivanova 07/18/2014, 12:49 am

    How to Knock off Any Cosmetic Product was a great starting point for anyone looking at formulating for the first time. It was a great read and quite informative.

  • ing 07/11/2014, 1:30 pm

    Great work! very practical and informative!

  • VANESSA 07/10/2014, 4:47 pm

    I love this. So far I only hand craft for people with difficult problems. But I would love to get a more formal and complete education. I am only a licensed Cosmetologist and Esthetician and Certified Acupressurist

  • tadros moussa 07/10/2014, 7:32 am

    we are pharmakon pharmaceutical company in egypt we like to thank you very much
    book for cosmetics formulations good
    we want formula for gradually hair coloring cream and formula for hair dyeing shampoo many colors if you can and want
    yhanks again very much

  • Dinesh Rathod 07/09/2014, 3:55 am

    Its really help full and ideal to formulate new cosmetics products

  • Sreedharan 07/07/2014, 11:08 am

    I have found the report very informative. It is a wonderful guide to the formulating chemist who is a beginner.

  • ellen Williams 07/06/2014, 1:27 pm

    Great piece of work for the budding cosmetic chemist!
    Thank you!

  • sewankambo 07/06/2014, 10:29 am

    its really fantastic develloptnt to our comunity !

  • moe 07/05/2014, 9:13 pm

    loved your article regarding copying a cosmetic it was very informative and insightful. It proves education pays.

  • Martin 07/01/2014, 11:14 pm

    The magazine was spot on. It teaches a lot of stuff though I think duplication of other people’s products is unethical and may be illegal in some countries. Would appreciate if product development information sharing became the core principle. Otherwise, great ideas.

  • helen 07/01/2014, 8:00 pm

    Really interesting and useful. Thanks a lot I will keep it as a guide.

  • Amy 06/30/2014, 2:43 am

    Really interesting read, so useful for those just beginning to get into cosmetic chemistry.

  • Cindy 06/29/2014, 1:44 am

    very good informative report for beginner.

  • Jules 06/27/2014, 12:02 am

    Interesting read!

  • salwa 06/25/2014, 9:47 pm

    thank you for leading us in the write direction

  • Adelina 06/25/2014, 4:55 am

    Good course for beginners!

  • henry han 06/22/2014, 10:29 pm

    Nice book~~~I think it really help a lot, and I am very excited for the courses given by email and video~~~~~thank you~~~

  • FUMINMIN 06/16/2014, 6:04 am

    Nice book~~~I think it really help a lot, and I am very excited for the courses given by email and video~~~~~thank you~~~

  • Cu Buivan 06/12/2014, 5:12 am

    I am the beginner in cosmetics chemistry, great thanks to matter chemist corner ! in my power idea that cosmetics are not only beauty it is also to help us another way by skin to complete vitamines to body for old man ?

  • Billy Mkhasibe 06/11/2014, 6:46 am

    Wow!! I am not a chemist, never been to tertiary but what have read and learned is amazing. I will like to learn a lot. I have already started writing down some formulas, I am going to enjoy this. Thank you and keep on doing the good job.
    Happy Creativity.

  • kerry 06/09/2014, 2:55 pm

    Very good for a beginners guide. I was hoping the spreadsheet link also included % actives integrated into the formula. Seeing as many materials, most in fact, are not sold at a 100% actives levels (example: take 50% cortisone vs 75% cortisone and in the formulation to get the same activity level you would actually use less) Accounting for this additional factor would be a more comprehensive way of explaining the real world science behind it. Great job.

  • Leigh 06/09/2014, 4:21 am

    This is just the info I was looking for! So well written and concise. If only other course material was the same.

  • Kavita 06/09/2014, 2:44 am

    Good starting point for a beginner.

  • Diana W. 06/07/2014, 10:54 am

    Thanks so much, very helpful!

  • vasu vora 06/07/2014, 6:56 am

    Fantastic please keep up the good work.Just retired from work and will like to try make some products for personal use

  • pw 06/05/2014, 7:37 am

    I think that you should present 1% rule in european enviroment

  • pham quoc viet 06/02/2014, 3:26 am

    the book is good and useful.

  • Joy 05/29/2014, 7:01 pm

    Perry, thank so much for the information. Found it to be very informative and easy to read, especially for a lay person wanting to be a CC.

  • Eliza 05/29/2014, 4:21 am

    Thank you. It was very helpful..keep on the good work

  • Terah 05/25/2014, 2:18 pm

    Really helpful information for beginners like myself. Thanks so much for sharing!

  • arezou 05/25/2014, 5:41 am

    it was great and useful. but I didn’t understand %1rule.

  • Nat-Lee 05/22/2014, 4:24 am

    Hi Perry

    Thank you very much for your very informative e-book!
    I’m in my first year of studying Cosmetic Chemistry with Coschem (South Africa) and this has really helped. I will defiantly recommend my class mates to support your page. There is some very useful info for us all and I’m sure there is a lot more that we can learn from you. But just for our studies but in our careers moving forward.

    Have a awesome day

    Kind Regards!!

  • NguyenTruong 05/20/2014, 4:36 am

    The “How to Knock off Any Cosmetic Product” gives the beginners good directions. Thanks a lot!

  • Kanjanee 05/18/2014, 10:47 pm

    Thanks for the information. It is very usefull.

  • Adnan 05/18/2014, 1:45 am

    Very helpfull raport, i will try to knock a cream. Thank you very much for all nice information.

  • Ellie 05/15/2014, 7:23 am

    Very helpful. I would appreciate more information about cosmetic formulas. Thank you!

  • Alka 05/14/2014, 6:34 am

    Great guide for those of us who are newbies ! Step by step introduction to the world of cosmetic formulations.

  • Donna Winters 05/13/2014, 9:57 pm

    I am VERY MUCH enjoying your information!! I haven’t had a chance to go through each one I’ve gotten so far, but hoping to soon!! The ones I have looked at, though, have VERY VERY helpful. THANK YOU SO MUCH!!!!!

  • fathanah 05/12/2014, 10:20 am

    Very useful and informative to those who have high interest in cosmetic chemistry like me. Thanks for sharing.

  • Rachel 05/12/2014, 4:05 am

    The report was very helpful and informative

  • Marianne 05/11/2014, 8:35 am

    The report on How to Knock-Off Any Cosmetic Product was extremely informative and is most definitely a welcome addition to my reference library! Thank you!

  • Martins 05/09/2014, 12:59 pm

    The information is helpful detail and eye opener. It encourages one to take the giant step and move ahead.
    Thanks for the information, I appreciate

  • kat 05/09/2014, 10:21 am

    Interesting I love this industry

  • Richard F. Sappington, Jr., M.D. 05/08/2014, 5:50 pm

    Perry. I thought your “How to—” very well focused on my need to know requirements for my current project. I also ordered your 3rd edition book. Thanks for your help. Francis

  • efat 05/06/2014, 12:37 am

    hello perry
    thanks .this is very useful information I have worked 25 years on hair care such as shampoo ,hair conditioners,gel .but now I want to work on some skin care :cream,sunscreen,make up .I would appreciate if I can use of your coures.

  • Sundae 05/05/2014, 11:54 pm

    Very Informative

  • Sierra 05/05/2014, 6:29 pm

    I really enjoyed the report on how to knock off any cosmetic product, it was clear and concise yet extremely informative.

  • Vasilis Kotsonis 05/05/2014, 1:48 am

    Even though I am not a cosmetic chemist I found the How to Knock off … very useful and interesting. Thank you for sharing it

  • tee 05/04/2014, 4:20 pm

    Thanks for the download….very informative and well written.

  • James 05/04/2014, 2:25 pm

    Chemist corner is awesome. There knowledge
    On the subject is outstanding, brilliant.


  • Arbi 05/04/2014, 10:11 am

    It’s very interessing

  • Bridgewell Nkosi 05/02/2014, 9:44 am

    This is simply a great eye opener. Thanks for the skills shared.

  • amr 04/30/2014, 7:06 pm

    It is very usefull

  • Mayra Gonzalez 04/30/2014, 11:49 am

    I found very useful and interesting, I’m interested in natural cosmetics, but I think That in your e-book. I will find a lot of information that I will can apply in the preparation of my cosmetics.

  • Luis Salas 04/29/2014, 11:23 pm

    Your ten steps are logical and they give a usefull and fast view, from the experience side, about how understand any formula. Really DOE is a powerfull tool to reduce time. Thanks for the advices.

  • michelle 04/24/2014, 1:37 pm

    Loved the e-book and look forward to the lessons; I formulated for the silicones applications in personal care but I was very interested in a methodology that made sense for me. I found it really well put together. Thank you!

  • Priyamvada 04/24/2014, 3:57 am

    Very enthusiastic, useful & informative given in “How to Knock off Any Cosmetic Product”

  • Dede 04/22/2014, 2:31 pm

    Lots of really good information in this document. Definitely, worth keeping.
    Thank you for the download.

  • Paulette Brown 04/19/2014, 9:40 am

    I have been reading the book and I’m finding it informative, despite the fact that I’m not interested in duplicating anything that’s out there on the market. What I’ve discovered is that most of the cosmetic products on the market [99.9%] to be extremely deceptive and perilous to the user.

    • Perry Romanowski 04/28/2014, 7:06 am

      Cosmetics on the market are not perilous to the user. The advertising may be misleading but the products are hardly deceptive. They do work as cosmetics.

  • mohamad abu hashhash 04/18/2014, 7:03 am

    Cosmetic Science Mini-Course Lesson 1&2 are marvelous
    thank you

  • Hitesh Patel 04/17/2014, 11:17 pm

    Thanks for sending e-book, this is very helpful to create my own cosmetics.
    Dear perry,
    I m developing my own cosmetic skin care product but I want to make it without preservatives. is it possible or not for all products ?

    • Perry Romanowski 04/18/2014, 7:35 am

      Making products without preservatives is inadvisable. Microbial contamination of products represents a significant safety issue. If you want to produce safe products you almost always have to use a preservative.

  • bassam 04/17/2014, 6:28 am

    thank you very much, very nice work, i wait for the course.

  • Marina 04/15/2014, 10:18 am

    I think this book gives some good information for someone like me who is just getting started. I look forward to more info on creating cosmetics. Thank you.

  • NADIA 04/15/2014, 7:24 am

    Interesting. Thanks for creating such a document.

  • mariem 04/14/2014, 7:33 pm

    It’s very interresting to have such informations, thanks you

  • Melissa 04/12/2014, 10:47 pm

    This was a very informative e book thank you for the download

  • Lily T 04/12/2014, 12:02 pm

    Thank you for your e-book. There are a lots information:)
    I just need very basic mixing healthy formula for skincare lotion.
    The book does help me understand basic about Cosmetic industry.
    Thank you.

  • khalid baig 04/09/2014, 2:39 pm

    It,s v informative ,helpful n fruitful.realy u did a good job .

  • lama al haushey 04/08/2014, 1:21 pm

    I appreciate your work and i find it very useful

  • Eduardo 04/07/2014, 10:37 am

    Very practical guideline; I already started using it

  • IDOWU 04/05/2014, 11:58 am

    Quite insightful write up. With this and many other things I’m learning on chemists corner I know I’m in the right place.

  • rami ghaly 04/04/2014, 7:58 am

    I appreciate a lot your great work , thank you .

  • carmelo 04/01/2014, 10:26 am

    Thank you, the pdf was every informative and very useful. Especially since I’m starting out
    again thank you

  • Sheena 03/30/2014, 6:40 pm

    This information was so helpful and taught me alot. Since i finished Cosmetology school i wanted to learn more and go in depth with how products worked. This was more than helpful.

  • Donna Dimick 03/29/2014, 2:15 pm

    Thank you so much for the report. I just finished reading it and found it to be very informative. I learned quite a bit from it and found it to be of great value in my ongoing C&T studies. Thanks again!

  • J Castellano 03/29/2014, 7:05 am

    Hi Perry,
    Thanks. Loved your 12 module course and this paper was very useful.

  • Valerie Gallaway 03/28/2014, 4:24 pm

    This was extremely interesting and I can’t wait to try making some “knock-offs” myself. Your website is fantastic, too.

  • Liliana 03/28/2014, 12:07 pm

    My English is not good and for that I can not write a lot of words, but I think I read something very useful and interesting.
    Thank you.

  • Liliana 03/28/2014, 11:57 am

    Thank you! I think is very useful and interesting.

  • Steph 03/27/2014, 1:55 am

    So helpful…! As a student who is looking for insight into the industry any sort of information is such a great help. I can’t wait to put this to practise. Thank you.

  • Luuk Jager 03/27/2014, 12:19 am

    This is a usefull report we do it it allready like this but Your report is very usefull for all chemist who like to see if they do it good with kind regard’s Luuk Jager BAS

  • Mike 03/26/2014, 7:18 am

    terrifically useful

  • Lonnie Hart 03/25/2014, 9:13 am

    Thank you for the report, Perry. I found it very informative and interesting, and it’s good to know that it’s within our grasp to create our own line of great products. You are such a great resource!

  • Victoria 03/21/2014, 11:54 pm

    Fascinating and useful.

  • Sheri 03/20/2014, 10:08 pm

    Thanks so much. This was a very informative And welll writen.

  • dimos 03/19/2014, 8:01 am

    Very nice booklet. all the basic info in one place. Thanks a lot

  • Lyz 03/18/2014, 10:36 am

    For a total beginner such as myself, not only is this information useful, it’s helpful as well. I think in my case there is “learning curve” here that even I can understand. Wish I had joined sooner :)

  • Byron Muir 03/16/2014, 10:06 pm

    Hi thanks for the very useful information I look forword to learning more as we go

  • AISHA 03/16/2014, 7:58 am




  • Susanna Jordan 03/15/2014, 5:57 am

    Thank you so much for this information. I am just getting started in the world of cosmetic chemistry and I am really such a novice at all of this. Initially I was worried that this text would be over my head but I was surprised to discover how easy it was to understand and follow this e-book. I love all LUSH product line and want to duplicate some of their products. With this simple to follow yet detailed book I feel more confident in experimenting with their formulas. I am ready to explore my inner chemist! Thank you Perry!!!

    • Mihajlo Malovic 03/18/2014, 12:06 pm

      Dear sir,

      I am B.S. chemist with more then 30 years experiences in cosmetic.
      I have been folowing cosmetic journal for a years (Happi., Cosmetics & Toiletries Magazine,GCI,) but I haven’t found what i’m looking for at one plice. Thank you very much for perfect professional tools for work in development new cosmetic product much better.

      Mihajlo Malovic

  • ali hosseini 03/15/2014, 5:11 am

    i want information about lip stick’s pigment.

    • Perry Romanowski 03/17/2014, 6:44 am

      Search our other articles for that.

  • jacinta 03/14/2014, 5:27 am

    the report was very helpful,, looking foreword to learning much from you and formulating my own product

  • riana 03/14/2014, 12:15 am

    Thank you very much for the information. It’s really helpful. Can’t wait to see next courses:)

  • ramona 03/13/2014, 11:15 pm

    Thank you Perry for all the valuable information that you share!

  • María 03/13/2014, 9:27 am

    For the beginners it’s a quite good imf0rmation. Thanks

  • Yvonne 03/12/2014, 1:22 pm

    Informative and thorough, not overwhelming. Thank you for sharing.

  • Al 03/11/2014, 2:58 pm

    Thanks so much for sharing. I feel I’m on the right track for formulating future products and this just helps solidify the foundation.

  • Lisa Proctor 03/06/2014, 7:53 pm

    Thank you so much for sharing. I’m in the process of formulating my own natural skin care line and this is very useful and valuable industry insider information that I will be able to use now and for many years to come.

  • tp 03/04/2014, 1:38 pm

    The book has been very helpful, thanks a lot!

  • Nicole 02/26/2014, 12:36 pm

    The report was very useful and detailed in explaining the chemistry of how products are created. thanks

  • Aleksandra 02/25/2014, 12:07 pm

    The Report is very helpful. . It gives a step by step recipe. As someone who begins to learn the technology of cosmetics, I can admit that it is clean and essential.
    I wish I could afford to Beginning Cosmetic Chemistry 3rd Edition because the Author is a specialist in his field

  • dimitra 02/24/2014, 12:56 am

    As a total beginner, I found these information very useful.

  • velu 02/23/2014, 10:39 pm

    I read How to Knock off Any Cosmetic Product full report.Very use full for me.I understand more.

  • John Heath 02/23/2014, 7:47 am

    I really appreciate your informative, free literature. Keep up the good work!

  • Traci 02/22/2014, 11:49 am

    Thank you for sharing such valuable information. I’m seeking to learn much about formulating cosmetics and your site is steering me in the right direction. I look forward to learning more and applying it to my work.
    Kind regards, Traci

  • Goh keng siang 02/22/2014, 9:08 am

    Very useful report for beginner. Easy to understand!

  • shawna 02/20/2014, 6:49 pm

    I thank you so much for this report. I have no chemistry background so i’m kinda starting in a backward motion to create my own natural health and beauty products. This report along with the formulating natural cosmetics course i’m confident i will be able to create some great products in the future. (as soon as i figure out all these science words, lol) Thanks again Perry.

  • Les 02/20/2014, 3:00 pm

    Very interesting, Gives me a lot to think about.

  • Denys Davis 02/19/2014, 12:05 pm

    This is what I was looking for and it was very helpful. Although I am not a chemist ( I think like one) I was able to understand the process. Unfortunately I am unable to find the fragrance for Vitabath Original spring gel

  • mitra 02/17/2014, 5:00 am

    Thank you for your useful site and report.I appreciate your help especially for newcomers.

  • ayman 02/16/2014, 11:08 pm

    very interesting and useful information

  • Liz 02/16/2014, 3:07 am

    Beautiful! Exactly what I’ve been searching for for years and didn’t even know!
    I love the clarity and breakdown.
    I appreciate the supportive nature of my personal
    Learning process.
    Thank you so much!

  • L.A. 02/14/2014, 1:35 pm

    This report was incredibly enlightening! It was very interesting, informative, and useful for a beginner like myself. I hope more of these reports are to come in the future.

  • Leopoldo Sucre 02/13/2014, 4:59 pm

    First,thank you very much for sharing this excelent information for free! In today world, this make the whole difference!
    The report was very clear to understand and follow for most of us that are not cosmetic chemist. You made a wonderful Job.thanks again .Best Regards,Leopoldo Sucre

  • KM 02/13/2014, 2:02 pm

    I thought the report was helpful in establishing a systematic approach to reviewing products to duplicate. I especially like the viewpoint of advancing technology through shared information. Thanks!

  • Gerasimos Pefanis 02/13/2014, 1:58 pm

    Very interesting and enlightening work has been done in this site. Keep working in this way!

  • pedro ortega 02/12/2014, 5:10 pm

    Perry 44

    Dear Sir

    this proposal very interesting to know the chemistry of

    cosmetics in an appropriate environment, driven by you.

    With the name of “chemist corner”, I realized that I had to

    do with chemistry in general. therefore interested me.

    then I realized that it comes to cosmetic chemistry and

    I am production chemist.

    very grateful for your consideration.

    Currently my interest is to work in my area



  • di 02/11/2014, 3:59 am

    Many thanks for the report very useful information can’t wait to get the video course .

  • Laurie Brown 02/08/2014, 5:02 pm

    Thanks for the download! I love your site, especially the forum. A few years ago I tried making some lotions etc and didn’t do well at it; I suspect this site will help me a lot!

  • somaye markazi 02/06/2014, 4:53 pm

    In fact I came across your site while Iwas searching for some basic informations in skin care industry,and to my surprise I found it very informative.Thanks and good luck.

  • JLB 02/06/2014, 3:25 pm

    Great outline of a methodical process. Some nice insider’s clues to ingredients, levels, and applications.

  • Odile 02/06/2014, 1:09 pm

    Very interresting indeed
    Keep going

  • Julie 02/06/2014, 9:43 am

    I’m so happy I got to sign up with this site. It is so informative and it’s a site I can trust. I love all the scientific articles and the fact that there is a forum to discuss cosmetic science with others. It’s a great place to really delve into cosmetic science and start learning. I’ve learned so much the past 2 years reading blogs and joining forums, it’s like I took a college course in CS for free. Some sites require proof you are a company, have your own product line, etc, before approving you to join. I was happy to be able to easily join such an informative site. And the free articles are great!! I love duplicating my favorite products, so it was so awesome to see I got a free article on breaking down and formulating duplicate products!

  • Crystal Moore 02/04/2014, 4:49 pm

    I really enjoyed reading and it was very helpful and informative!
    Thank you !

  • Tiffanie Garrett-Reid 02/03/2014, 10:09 am

    I am extremely happy that I came across this site. After reading these 10 steps so many of my questions were answered. This was beyond helpful. I plan to recommend this site to many other people. So much information in a small amount of pages. I learned a great amount and look forward to more material. Thank you for this

  • Fred 02/01/2014, 10:39 am

    I have been making a few cosmetic products in my detergent bussiness, and are always looking for more descriptive applications with formulations to make better products. I find that this may be exactly what I was looking for. Very reader-friendly, very concise, straight to the point

  • Silvia 01/30/2014, 2:24 pm

    Really helpful!

  • wendy turpin 01/30/2014, 3:42 am

    It was easy to read, had many good tips, and it was organized. Well done

  • marta 01/29/2014, 9:39 am

    I really loved this, it’s really hard to find such practical information. I’m fresh out of pharmacy college, and have been fascinated with cosmetic formulation for a long time. I’ve been doing my own experiments for years. My goal some day is to have my own small cosmetics business. With very little experience other than my own experiments and non-specific college education, and after going through books and books of theoretical cosmetic science, I’m thrilled to find such specialized hands-on texts.

  • Rachael Bempomaa Apenteng 01/29/2014, 7:24 am

    I found this report very useful as a beginner.I’m interested in knowing more about the expiry of a homemade body lotion especially when its going to be stored in a refrigerator.

  • Maya 01/28/2014, 8:27 am

    Thank you so much for this report! It`s exactly what I was looking for. Very reader-friendly, very concise, straight to the point and `sharp written`. Amazing tool for anybody who are planning to open their own business.

  • khaled elkomy 01/26/2014, 2:40 am

    the report is marvelousو Direct and clear, easy practical application,
    In fact, already begun in the application of it

  • Marius 01/20/2014, 5:24 am

    As a developer and manufacturer of skincare products in South Africa I’ve found your information very usefull. We don’t get a lot of usefull help this side of earth.

  • Wendy 01/17/2014, 9:08 am

    I found the report very useful and look forward to utilizing some of the techniques for my first batch of hand cream. I would love some recommendations for other resources on this project.

  • IHK 01/16/2014, 11:59 pm

    Direct and very helpful assistance for start up.

  • amensah 01/15/2014, 7:14 pm

    As well as being informative, the book was well-written and easy to follow. A great guide for beginners, with some honest advice also. I’m looking forward to receiving the mini-course to teach me more about formulating and the cosmetic industry. Thank you for the service you’re providing.

  • Kerstin Hagstrom 01/15/2014, 12:29 am

    Thank you for the great info. Brand new to the subject matter and am absolutely fascinated by the topic. Having a lot of fun mixing and creating my own things. This info will help a lot.

  • uzor cally 01/14/2014, 7:18 pm

    As a pharmacist who was exposed to wet lab and compounding some years ago, i found your course very refreshing and informative.I am planning venturing into cosmetic formulation and i consider this course a “God sent”. This is exactly what i have been searching for all this time.

  • Jae Smith 01/13/2014, 11:46 am

    This is a great starting point for us who are just breaking into the biz. We look forward to employing these techniques and potentially cutting some of our costs when deciding what we can do or what we need to outsource! THANKS!!!

  • Bob 01/12/2014, 11:43 pm

    It is really an excellent guidance for a beginner learning how to replicate cosmetic formulation as well as a significant beginning to design a new one. The article is easy to read and understand. However, it also tells us some rules and regulations in cosmetic industry.

  • hayah 01/12/2014, 6:13 am

    Hi perry..
    Iam realy very thankful to gave me these informative book,And l hope that you can help me in starting my own line of
    cosmatics that is totally natural from herbs and honey these is my almost dream.
    with my sincere thanks

  • Kathleen 01/09/2014, 11:49 am

    Very informative! Thank you for the information. I will be able to put this information to immediate use.

  • karabo 01/09/2014, 7:07 am

    this is great,what i have always wanted.i want to start with formular for bath soap.thank you a lot

  • manin tsolo 01/09/2014, 2:08 am

    A really practical and easy to implement step by step guide. Thank you, it was helpful

  • Lyn 01/09/2014, 12:48 am

    It is very easy to read even if I am not a native. Well written and informative.
    I am so glad to have come across your website. Thank you!

  • yaoyushan 01/08/2014, 6:36 pm

    Even though I am not native English speeker, but the book is vey useful, it is easy to read and understanding. Thank you for your wonderful work.

  • Sarah 01/06/2014, 9:25 pm

    I am a newbie and found this a very easy read considering it IS cosmetic chemistry. I especially appreciated the easy to follow steps that approached formulating logically such as the 1% line and others. Thank you!

  • kwan 01/06/2014, 9:06 am

    I am a very newby and I found out that this pdf is a very great start for the beginner. Easy to read, even if I’m not a native. Thanks again for this useful info :))

  • Lynnie 01/05/2014, 10:47 am

    Thanks for the PDF! Very well-presented and informative. I would love more info on how to identify the 1%line and you should also please fix the typo on heading 2. “becoming and expert”. Good job and thanks again!

  • Hector 12/26/2013, 2:08 pm

    The free ebook is great for starters. Being trained in physics and biophysics (working at a university) I find such book very interesting and full of sense. I have developed some formulations for different skin conditions, from scratch, going over the peer-reviewed journals and “mom’s and grandma’s advice” :-) I do this primarily for my family and friends as a hobby; at least their comments are great! Hope to learn more in the near future! thanks again…

  • Alex Byarugaba 12/13/2013, 4:35 am

    I am a chemistry graduate so I found the material interesting, but discovered that I am already doing most of what you recommend already on my own steam. Waiting to see what you will come up with next.

  • Tanja Koštomaj 12/12/2013, 5:29 pm

    The book is very useful for the beginners without any formulating experiences.

  • michelle 12/11/2013, 9:21 pm

    Thank you for the pdf! It’s very informative and I will give this further attention once I have a break from school. I would like to experiment and see how I do, based on the instructions given.

  • goumenaki 12/11/2013, 5:45 am

    it is a very usefull article,easy to understand even if english is not your mother language.although i am more interested in specific formulas and the exact way of making them.still a very good start

  • berenice 12/10/2013, 10:29 pm

    Very interesting and useful facts love it!

  • nagib 12/10/2013, 11:40 am

    It is good orientation and of good useful tips.

  • MHABIB 12/09/2013, 12:01 am

    very knowledgeable information

  • susan 12/08/2013, 9:41 pm

    Found it interesting and regard it as an introduction to cosmetic science. However I will be looking for more in depth material comprising of formulations, regulations, pitfalls, financial issues etc.

  • Niki Neophytou 12/06/2013, 6:59 am

    Well written and comprehensive!

  • Joanie 12/05/2013, 7:26 am

    This is amazing insider information. I’ve been a DIY hobbyist for many years and have gotten great pleasure from formulating, not to mention the money I’ve saved. Reading through the hype of cosmetic companies is entertaining and to begin to understand the chemical invasion is almost scary. Your book is a great bonus and so glad to discovered your website. Carry on the great work!

  • Natasha 12/04/2013, 10:32 am

    easy to read guide, such a great help and fantastic insight. Thank you!

  • marwa 12/03/2013, 10:42 am

    first of all. it makes me very glad that you care to follow up,i am really thankful
    the booklet is very valuable.and contain a lot of information that is completely new for me.
    the language which you used is quite easy and clear especially for those people that their mother tongue not English as me
    i like also in the booklet that it is organized and follow serial ideas in steps
    also and a very important thing,is although i studied pharmacy and cosmetics diploma,but i still in need to be more practical and realistic.and that exactly what your booklet guide for,in a very simple,easy and economic way.
    iam sure iam in need to buy this valuable book very soon

  • Tanya 12/02/2013, 10:03 pm

    Thank you. It was very useful material for me as a novice cosmetic chemist. I will be sure to buy the book!

  • Nat 12/02/2013, 6:05 am

    Good reading, very helpful for opening my soap business

  • Marycolette 11/29/2013, 5:01 pm

    Dear Perry,
    the book is a knock out bomb-shell. Words cant explain. God bless you alot. Your gift is timeless

  • yazit nor 11/24/2013, 3:31 am

    I have read the note that you send me and feel like looking at a map on where to go about for a beginner with non cosmetic chemistry background.

  • Harish 11/23/2013, 9:59 am

    Hi Perry,

    The link in your e-mail to download the `Primer on Natural Cosmetic Formulations’ does not work for me. Coyld you please send me the correct link so that I can down load a copy.



    • Perry Romanowski 03/17/2014, 6:51 am

      Hello Harish,

      I’ve fixed it so it should work now.

  • Harish Kumar 11/20/2013, 3:13 pm

    Very interesting booklet. I am in the process of setting up a lab to make lotions and soaps for specialty use. This book has been very useful as a first step. I look forward to reading other publications from your site.


  • EMMANOUIL GOUNARIS 11/17/2013, 1:23 pm

    very usefull!!!!

  • Abdalla 11/05/2013, 11:23 am

    I’m doing my Ph.D. Research in Evaluation of the concentration of Toxic metals in cosmetics in SUDAN, it is some sort of comparison studies between imported and local cosmetics (specially those used as a whitening agents and Hair dyes).
    It would be grateful if you support my research because we have notice many signs indicating that unsafe cosmetic preparation might causes many health problems .

  • SHIVA M 11/03/2013, 2:36 am

    Hi Perry,
    It is great and invaluable information for all of our cosmetic formulators and specially for the beginners. Let me share my little experience to your visitors about one of the useful websites helping to formulate appropriately. It is ” http://www.personalcaremagazine.com “.

    Thank you again,

  • Yvonne 11/01/2013, 2:06 pm

    Extremely useful information. Not being a cosmetic chemist, this document actually provided a systematic approach to basic product development. I have been making good use of the info provided. This is step 1. Thank you.

  • Rosa 10/31/2013, 10:00 am

    I think this e-book is quit informative and useful but only if you are starting out .Developing cosmetic formulations is not so easy.

    • Luree Ward 11/01/2013, 8:22 am

      This was a great and informative presentation! Very informative and to the point!

  • Ernescka Ferguson 10/30/2013, 7:24 pm

    It was very informative. I had no idea it was so simple.

  • kc 10/30/2013, 3:30 am

    very useful information, thank you.

  • Goh 10/29/2013, 10:06 pm

    Very informative and useful systematic way to develop the formula.

  • Irene 10/27/2013, 3:27 am

    Its so informative. I m so glad i found the site

  • Lesley 10/25/2013, 1:36 pm

    Fantastic, very informative and useful to me, as I intent to have a good go at making my own cosmetics thank you so much

  • Samuel 10/25/2013, 12:17 pm

    Very informative. I am glad that I stumble to the site

  • Jude 10/19/2013, 7:11 pm

    This book is so informative, I am glad to have come across you website, it has enlightened me as I am staring my own cosmetic line.

  • yvonne 10/19/2013, 5:39 pm

    Hi Perry,

    Very useful information. I have always been interested in doing reverse engineering on some products I’ve used that proved to be very effective. My idea is to understand the composition take out the bad stuff and improve the formulation for added benefits.

    I am curious though, are these companies completely honest in listing all their ingredients when it can be easily copied. Where is the competitive advantage in that case.

    • Perry Romanowski 10/20/2013, 3:57 pm

      Yes, they list their ingredients. In the cosmetic industry, it is marketing that sells most products not the performance of the products. Just because you can copy someone’s formula does not mean that you will have a successful product line. People buy cosmetics because of good marketing.

  • Babak Gh. 10/18/2013, 11:38 pm

    Thank you for everything. I need many new formulation about personal care, please help me.

    • Perry Romanowski 10/22/2013, 12:14 pm

      See our post on sources for free cosmetic formulas.

  • Kallia 10/18/2013, 8:55 am

    It’s a very useful collection of all the necessary information that someone will need, if he/she is planning to have a project on this field. As a chemist I found it quite informative and very easy to read! Thanks a lot

  • Alisa 10/18/2013, 1:05 am

    The booklet fed into my “mad scientist” side. I have been doing many of those things since I was 13. I would go to the cosmetic counters and ask to look at the products while I study the ingredients list. Every time I read about a new skincare or haircare product in Vogue or Allure, I immediately research the ingredient list and try to figure out how I could do a better formulation. I thought I was the only one that occupied herself by being such a sleuth. I am always curious what makes a product work or not work and what would make it better. I did not learn so much as I felt emboldened and encouraged to continually try to take the best products in the industry, make them better by tailoring them to my needs, getting rid of the ingredients that don’t really add anything, and adding ingredients that would have a better synergy … I love finding out that I am not alone in my favorite hobby.

  • Merryl 10/15/2013, 6:00 pm

    Thank you for your information. The more I delve into the world of cosmetics, the more I want to learn. As a learner, I found the 1% rule very interesting & the fact that surfactants & thickeners etc. are more important than the actual actives in a formula.

  • phu 10/12/2013, 2:30 am

    for the beginner and having no basic on chemmist like me, this report is extremely useful. It gives me the very visual image.
    I still have some questions on reading this:
    – Step 4: plz tell me more about how to get patent from the website of united state patent office
    for e.g: I want to get patent of the product Fruit of the Earth, aloe vera gel, so what should I do?
    – Step 5: How to analyze the formula if I don’t have analyze machine or lab? What can I do instead?


  • V.R. 10/09/2013, 6:28 am

    I have some experience in this area, so there weren’t new things for me to find out. However, I think article is good, well written and can offer a lot of useful information for someone who is new in this area.

  • Henry 10/08/2013, 4:13 pm

    Thank you! I found the approach very useful and realistic in application and potential execution.

  • Ray Hauser, PhD 10/07/2013, 1:37 pm

    I’ve been developing some unique anti-itch lotions during the past many months, and might have made faster progress if I had read your Knock-Off book earlier, but I wasn’t trying to match an existing product. I have improved such lotions considerably. I question whether your suggestion on page 20 to add salt to adjust viscosity, when gellants are much more effective but take some learning on how to use them. I’ll pass the notes onto a new assistant.

    Ray Hauser

  • Lierni 10/07/2013, 6:26 am

    Thanks for sharing the report. Helpful and clear as introduction.

  • Taddele Abate 10/06/2013, 7:44 pm

    Thankyou I found it interesting and very useful for my purpose . Taddele A .

  • VMose 10/06/2013, 5:13 pm

    I learned a lot of good info from this manual, and yes I must agree…I took all those chemistry courses and really there is nothing practical that I learned so that I could apply the knowledge towards creating products. I mean yes, you learn how certain molecules bond and why. I would definitely be interested in learning more about cosmetic chemistry.

  • Alex 10/05/2013, 10:05 am

    I had taken one of your SCC courses before and found this to be consistent with the excellent presentation then. I appreciate your ability to “teach to your audience,” if you know what I mean. I look forward to getting more educated from future sessions. Thank you.

  • Simon Ojiefoh 10/04/2013, 10:34 am

    It was great. thank you for this site and forum, though i haven’t seen exactly what i am looking for in this website, i am happy i entered this site.

  • Abderrazek Dahbi 10/04/2013, 1:56 am

    Thank you. This ” How to Knock-off Any Cosmetic Formula ” was very interesting. Easy to read and informative.
    I wish you all the best, and progress.
    Dr. A. Dahbi

  • Anthony 10/03/2013, 1:51 am

    A very nice and informative course. It reveals a lot I didn’t know previously, especially how to use information from the patents and list of ingredients to replicate a cosmetic product. Thanks.

  • Marina 10/02/2013, 1:56 am

    Thank you for a great and useful book!

  • Ajaz Ali 10/01/2013, 6:56 am

    It is best.i believe in future you will be of great help for me …..i have some plans of manufacturing in near future.
    ajaz ali

  • Jenny Wu 09/30/2013, 7:48 pm

    I found this booklet provide a lot of information for cosmetic chemistry.

  • Marina Todorov 09/30/2013, 12:30 pm

    Very informative, interesting and useful.Thanks!

  • Carley Macaluso 09/30/2013, 10:20 am

    I just started my career in Cosmetic Chemistry after the last 5 years in the biochemistry industry. This was very helpful in getting me familiar with cosmetic formulations and terms. Thank you.

  • Nia 09/30/2013, 10:08 am

    After reading the material, I was surprised that you could use patents to your advantage in making cosmetics. Interesting tidbit!

  • Tracey 09/30/2013, 4:26 am

    Very informative, it will be helpful in future formulating

  • Mohammad Tavakkoli Yaraki 09/30/2013, 12:48 am

    I wonder if there was more information about the mechanism of this action. What is important to scientists, in these types of product, is how these products really work and description of mechanism. The results are not important alone.

    • Perry Romanowski 09/30/2013, 2:32 pm

      We cover that kind of information in our training course.

  • Peggy 09/29/2013, 11:59 am

    I thought that US companies could keep some ingredients secret as “trade secrets”, however in Canada one must list all ingredients. Your report says otherwise. I have also noticed that in Canada there are companies such as Arbonne that do not list all their ingredients.

    • Perry Romanowski 10/02/2013, 9:42 pm

      Companies are supposed to list their ingredients on their packages.

  • Morry 09/29/2013, 11:29 am

    I truly admit that your HOW TO KNOCK OFF ANY COSMETIC PRODUCT report very informative. It is a good first hand manual to our beloved cosmetics, giving tips which to me if well studied will generate new and innovative cosmetic formulations. Thanks. I’m yet to practice them and if questions arise i will surely let you know. Again, thanks.

  • uri 09/29/2013, 2:18 am

    “How to Knock Off Any Cosmetic Product” was enlightening, and very interesting. I was glad to see that it had a down-to-earth tone, free of commercial hype. This is refreshing in a world geared towards consumerism.

  • Uong Duong Cam Tu 09/28/2013, 10:40 pm

    It’s very informative, I’ll understand applying chemistry in comestic clearly. I hope you’ll send me other parts of course. Thanks a lot

  • Carol 09/26/2013, 2:11 pm


    One would have thought that formulating a product for cosmetics would have taken the world, but your article gave so much info that can make even an interested novice go about it with ease. Please keep up the good work and keep it rolling it.


  • Sheikh Dastagiri 09/23/2013, 12:29 am

    It’s impressive.

  • Racheal Lewis 09/21/2013, 1:27 pm

    It was a very good read. It gave good insight in how to approach formulation and save time. I will definitely use this approach once I start to work in Research and Development.

  • LouLou 09/16/2013, 12:01 pm

    Thanks Perry for the information

    I found it most informative, especially as someone who has practically no knowledge of chemistry!

    I am looking for a chemist based in the UK who can help me develop a range of products – any ideas of how to go about finding one pls?

    With thanks


  • Helen 09/14/2013, 6:28 pm

    Hello! I felt it very informative! I learnt so much. My only suggestion would be to be more specific about how to blend ingedients. (Im relstively new to the chemist industry). Can this process be done at home? Or do you need a lab and specialist equipment? Do u just mix all the ingredients together? Or do you need to heat them up? More clarification would be much appreciated!

  • santi 09/13/2013, 12:49 am

    very good, i got some experiences from that book.

  • Ngotrang 09/12/2013, 8:49 pm

    I just want to let you know how thankful i am for your sharing knowlegement. It is so helpful. It leads me to where i want to go.
    Keep moving 😡

  • Shawn 09/11/2013, 12:33 pm

    This is a great guide. I’ve been attempting to duplicate a cream that is no longer available for a friend, and this guide, with it’s easy and common-sense steps, has made the process so much quicker and easier. I don’t know how long it would have taken me to get the product right (if at all) without it. Thanks!

  • Rachel 09/11/2013, 10:53 am

    Your material is very helpful to me. I had an idea for a product, but, although I am a chemist by training, I do not have any experience in the cosmetic industry at all so I felt overwhelmed. Looking on the net I came across your guide and it was just what I needed to get the “bigger picture” of the whole process, including marketing, the legal side etc.

    I look forward to the Cosmetic Science Introduction Course. Thanks!

  • Kristal McCool 09/09/2013, 12:33 pm

    I really enjoyed “How to Knock off Any Cosmetic Product”. The report let me know that I am on the right track and pointed out some things which I did not know. It gave me a step by step process on how to get my product more in line with what I had envisioned and the report showed me how to look at other products to determine the reason behind the ingredients listed.

    What I am currently trying to do is make my own base. By following the precepts listed in the report, I should be able to get to my destination faster than I had previously anticipated. I’m also learning a bit more about chemistry and it is a world full of excitement and adventure.

  • Sylvain Bellerose 09/07/2013, 5:49 pm

    Thank you. This ebook was very interesting. Easy to read and informative.

  • Mitch 09/05/2013, 7:13 am

    I was impressed with the thoroughness of the report. I didn’t think copying a formula would be so intricate. Thanks for the hard won knowledge.

  • mellynne 09/04/2013, 7:18 pm

    very helpful info nice read very informative. thanks great that its free :o)))

  • Linda 09/04/2013, 5:26 pm

    This report was excellent for people like me who always wondered how it was done. Enough detail to be practical, but not overwhelming. I enjoyed learning the thought process from beginning to end. Thanks!

  • Zorka 08/31/2013, 12:07 pm

    Hello,Thanks for really good informations and very usefull ,also.I just start to use it and I hope to read more.Regards!

  • yohan 08/30/2013, 10:11 pm

    Great, It was very helpful and informative for me as beginner – I will try to make my own formula and start for new bus. Looking forward for the next information. Thank you.

  • sarah mahfouz 08/30/2013, 2:58 pm

    I find pretty much useful , especially at this point of my career . thanks

  • Sankar Jayaganesh 08/30/2013, 6:20 am

    it is a quite informative booklet. Easy to understand format. Your website also wonderful to search any kind of en query. thanks for your service.

    kindly give me the one short term course book..

  • Sankar Jayaganesh 08/30/2013, 3:30 am

    very informative. give the useful information to develop any kind of product. it is small compendium of formulation chemsitry basics. thanks… and keep it up…..

  • Keneesha 08/29/2013, 5:07 am

    Excellent document! I really appreciate that it provides an approach re-verse engineering products in “non-chemist” terms. Now i can better use my resources to help with understanding ingredients, selecting equipment and improve my overall product outcome.

  • Dan 08/26/2013, 3:00 pm

    This is great. The day after I read this I was looking at ingredient lists in the store, trying to deduce the 1% line.

  • Ester freitas 08/25/2013, 11:34 am

    I found the report very informative and clear. For me, a beginner in the area, every trustfull and practical, piece of information that comes to my hand, is of great utility. This report was quite practical and was direct to the point. Easy to read, simple and short as the information should be. The subject itself was very useful, because for the beginers like me, we suspect that the number of copies or near copies should be big in the market, but we always fear to be inspired in competitors, and to fear to do benchmark is an error. It helped to clarify how to behave in this market in the commercal level.

  • Nelly 08/23/2013, 5:51 pm

    Hi Perry,

    I found your report very informative. Great info for a beginner like me. I hope I’ll e able to take your course soon. I ‘m very interested in your course for more in depth info. Thank you.

  • sudha 08/22/2013, 10:20 am

    “How to Knock out a Cosmetic Formula” is an informative document giving a broader perspective to a formulator. Though I formulate and test prototypes in a lab yet there is so much more beyond that to learn. This is evident from this document.

  • Biljana 08/22/2013, 8:06 am

    Thank you for sending me this e-book. It explained the concept of cosmetic to product formulation. I liked the best example of formulation technique. Excellent guide on practical information about cosmetic science. It provides an overview of Product Development: How a Raw Material Becomes a Cosmetic.

  • Gloria 08/20/2013, 11:41 pm


  • Erin 08/20/2013, 12:46 pm

    “How to Duplicate Any Cosmetic” was fun to read. I am currently looking to further my career as a chemist. I want to learn about all the raw materials and how they interact during manufacturing of cosmetics. Just making the cosmetics isn’t enough, I want to understand exactly what is going on! I found a place to start looking.

  • Pradeep Deo 08/20/2013, 9:23 am

    Dear Perry , Have been in the Essential Oil and Spice and Botanical extracts industry and always had interest in Cosmetic formulations. Have been interacting with a lot of Cosmetic formulators – especially on the Fragrance and in the development of Active Botanical Ingredients and related product development. Even though , have been doing a few things what has been suggested in the 10 step system without actually knowing about it formally , your Report has given me a fresh insight and would definitely help me in approaching new tasks with a much greater clarity and discipline ……. Incidentally , I happen to interact with a lot of Food Processing companies who are trying to developing products in line with the Market leaders ……..Feel , the 10 step system would apply and hold good even for Food products too…………….

    • Perry Romanowski 08/20/2013, 11:11 am

      Thanks for the info! Hope you find the rest of the information we provide helpful too.

  • Raphael 08/16/2013, 3:56 pm

    Hello Perry,
    Thank you very much for the e-book “How to Knock off Any Cosmetic Product” that you sent. I found it very comprehensive wit a lot of useful information. It was very thoughtful of you to compile this report.

    Thank you once more

  • Solange Peretti 08/14/2013, 2:28 pm

    Hello Perry !
    I’d like to thank you for the e-book “How to Knock off Any Cosmetic Product” that you sent and give my feedback about it. It is a very useful e-book ! I’m from Brazil and here is kind of dificult to find books about this subject, it is really inspiring to me and I’m happy to know that the work that I used to do here is almost the same that some cosmetic chemists do in U.S. (as you showed in the book)! One new thing that I learned from the book as the “1% rule” I did not know that . So thank you !

  • nulambeh jim 08/13/2013, 4:15 am

    hi sir am really glad to part of this program. sir i will really like to have information on chemicals that can cream(change ones color) the body from black to white rapidly without causing harm to the body. also how can i order for such chemicals as soon as possible. all these demands is because i run a beauty center here in my country and there is a high demand for mixtures that can change ones color from black to white. i will be grateful if my request is granted.

  • Tom 08/09/2013, 5:42 pm

    I found your report to be very informative with important links to information. I have a couple of books related to this field but your report was easy to read and cut through all the fluff. My interest was in patenting of formulations and I wondered how your “knock off” book would affect my thinking. That will take some time but I will let you know. Patents are supposed to disclose but how much to they protect? If a formulation is as easy as you say to knock off, then trade secrets are a waste of time.

  • Diane 08/08/2013, 6:53 pm

    The “How to Knock off Any Cosmetic Product Report” is informative and very helpful for me as a starter. Thank you

  • katt 08/03/2013, 10:37 pm

    This was a very informative and simple read for beginners! I’ve been a “kitchen witch” all my life, but have only been taking it seriously for less than a year (although very intensively). Im preparing to enter our local farmers’ markets, and this guide was very validating to me to assure that I have been instinctively doing a number of the recommendations in the book. But it also expanded my knowledge and provided me with more resources to take the next step to create a professional product that is competetive.

  • Rabi Ekore 07/30/2013, 1:52 pm

    I found the ebook quite interesting. It gives a beginner a good guide not only on how to reproduce existing formulae but also on how to go about creating their own formulae. And the adivce on producing in very small batches is a valuable one, as it helps to save cost. However, I would like to see a section with a very practical example, for example, producing a particular face cream from start to finish. Thank you for all the information provided. The book is an okay guide.

  • mezan 07/30/2013, 6:23 am

    i want to take a practical training on that , is it possible ? if possible pls give me a chance . i will pay for this

  • Karen 07/29/2013, 5:21 pm

    As a sales rep, relatively new to this industry, this was very interesting to me. It helps me understand the steps my clients are taking when they are creating knock-offs or even developing something new. And it helps me to understand how the ingredients I’m selling will be used. I can speak more intelligently on this topic now. Thank you!

  • Michael Fields 07/27/2013, 12:46 pm

    It is a great place for newbies like me to start. I have only been in the cosmetics industry one year. I was a flavor synthetic chemist in my previous job. I greatly enjoyed reading it and it is going to help me in new directions our company is trying to take. Thank you very much.


  • Maira Simoes 07/27/2013, 7:21 am

    “How to Knock off Any Cosmetic Product” is a comprehensive, very useful and well informative book. There are really good clues, mainly for those starting as a cosmetic formulator. It´s not so deep (and we are advised about that during the reading), but is an excelente good start! Thank you for releasing a material like that!!!

  • Ed Ladores 07/26/2013, 10:53 am

    I really did not expect to find a website as informative as this. I’m involved in crop protection chemical formulation but would like to explore the potential of formulating shampoos to control red mites of fowls. Your site has drastically reduced my problem. It was really a big help to new probable cosmetic formulators!

  • Domnina 07/25/2013, 4:40 am

    Very usefull!

  • Mary Udoh 07/25/2013, 12:03 am

    i have just discovered my passion for cosmetics formulation and my quest for knowledge has helped me discover Chemist Corner. Though i am a beginner, i am learning a lot from chemist corner, and the 10-step system for knocking off any cosmetic formula is superb, it makes me eager to do more. Thanks Perry, i’m in love with this field.

  • tunde richard 07/24/2013, 8:26 am

    we have not experimented the formulation yet,but from the the ingredient afre all on point

  • Samorn 07/22/2013, 1:52 am

    I’m glad to have found your website , after reading Knock-Off a Cosmetic Formula
    making me smile and more smart, especially step 3 and 5, it’s a basic advantage.
    I didn’t get such ideas from others , it’s simple but works well.
    Thanks a lot.

  • Miss Sparkles 07/21/2013, 10:58 am

    This article, like everything on Chemust’s Corner, is informative, straight to the point and generous!
    Thank you for the resources, links, and there is something for everyone no matter what angle you are coming from.

  • george 07/18/2013, 2:15 pm

    its good but need more example

  • Sarina 07/17/2013, 10:43 am

    Excellent web-site! So glad I came across it! Thank you for being so willing to share information. It is rare to find people willing to share knowledge in this industry. Thank you!

  • Brenda 07/16/2013, 12:08 pm

    The information that you provided was well put together and very helpful.


  • ahmed atta 07/12/2013, 6:10 pm

    This is great idea to develop the cosmetic formulation in duplicacy.

  • Becky 07/06/2013, 5:34 pm

    I haven’t read all the comments, but I really liked this article. It gave me a clear starting point — something to try. I would love to take your course soon. I look forward to it! :)

  • Kim Dao 07/05/2013, 4:24 pm

    Fantastic report,very informative.Thank you for sharing this book with us.

  • Sheena 07/04/2013, 3:30 pm

    Great practical advise and clearly laid out

  • kc 07/04/2013, 3:16 pm

    Very informative and a great resource.

  • Molly Dunkle 07/04/2013, 1:13 am

    I want to thank you for the information you sent me, it is very helpful, and gave me encouragement for developing my own formulas. I look forward to using it as a great resource in the future, and gathering further information from the newsletters. Great stuff!

  • tee tee 06/27/2013, 4:56 pm

    The advice offered was specific, concise and practical. All the necessary information was given for items not provided in the book which saves the reader the time and energy to do that research. Furthermore, being that the source is reputable, one can feel confident in the information.

  • Raj 06/26/2013, 8:55 pm

    Very interesting!
    A good starting formualtion procedure to follow, especially for those still learning how to formulate simple creams and can move on to more complex formulations.
    Good to be part of such an organization and get help to develop formulation skills.


  • chimex 06/26/2013, 10:01 am

    yes i am happy to identify with you and would be more glad if you will accept me to work with you through locally empowerment to people in the rural areas. yes i read chemistry at educational level and am a researcher and also a soap making scientist but i need to establish a cottage factory so to encourage and attract more young investors into your business so that you would be excel in life improvements and wealth. write at hmudo@yahoo.com and direct me on how to join you but bear it in mind that if you considered me fit i will discharge my skills and duties according to your satisfaction. thanks

  • Colleen 06/26/2013, 9:12 am

    Very interesting! A good procedure to follow, especially for those still learning about cosmetics and formulas.

  • wesley 06/25/2013, 9:29 pm

    it is very good. i am from china.

  • fahim 06/24/2013, 12:00 am

    hi friends i want to know how to make A shampoo (anti dendruf) in a modren way ?

  • Jill 06/19/2013, 9:22 pm

    I have just joined a personal care contract manufacturing company and I find this report very informative, helpful and fun to read! Thank you Perry and I hope there will be more articles to come!

  • Bebe 06/19/2013, 5:31 pm

    Hi, Thank you for this report it is excellent insight into making my own products and getting me started on my own business.

  • Laotouzi 06/18/2013, 1:31 pm

    I got the report to learn how to reverse engineer mixtures. Specifically a suspended particle industrial compound used in polishing metal. At least the process is outlined, even if not the particular compounds involved. A useful document.

  • Kelly 06/17/2013, 7:09 pm

    This is very wonderful . Thank you for these information. Though I have been involved in cosmetic product formulation for many years, I have not had this line of information.

  • ahmed 06/17/2013, 8:06 am

    thank you perry for this important information

  • ahmed 06/16/2013, 5:10 pm

    thanks Perry for this report it verry important so i am looking forward for more information .

  • zikri 06/14/2013, 3:07 am

    It had really good and useful informations.thanks …

  • Elena 06/13/2013, 1:15 pm

    Great guidelines to begin with. They will definitely save a lot of time and sweat for me. And also I would really appreciate it if you continue with Volume 2, something like: “How to alter the original formula to improve it and better suit your needs” 😉

    Brilliant teaching approach, Perry.
    Thanks a lot!

  • sash 06/12/2013, 6:25 pm

    Thank you for this report, I was tasked with an idea! Could we make our own product to sell? This paper has been my the basis of my initial response…yes!

  • Ms Deborah Jenkins 06/10/2013, 7:54 am

    Thank you, I appreciate the well organized, step by step process you describe. The fragrance has been elusive for me and I haven’t found a good source. I would also be interested in a scientific method on how to distill active ingredients from my favorite botanicals. Thanks again for your book!

    • AndyH 06/10/2013, 1:09 pm

      Hi Deborah,

      Again I find myself responding (apologies for my enthusiasm having being in the industry for so long!).It can depend on your location geographically to find a perfume house to cater for your needs -depending scale, quantity, price and availability.

      There are numerous suppliers locally or through agents who can satisfy demands from minimum quantities to bulk – depending on
      your manufacturing requirements.

      As regards to distillation (not as straight f0rward as you may think) there are smaller suppliers who specialise – but you will need to
      spend time sourcing these reliable specialists – although major fragrance houses will oblige [quantity viable].

      What I would advise is to source your favourite botanicals from a reliable supplier (of which there are many) and would suggest essential
      oils rather than absolutes due to the cost of such!

      If you require botanical extracts – a rather different ‘kettle of fish’ again there are many reputable suppliers who can supply ‘regular’,
      or ‘organic’ versions depending on your requirements.

      Good luck!



  • Leah 06/06/2013, 6:37 pm

    Hello! I am so happy to have found this website! And thank you very much for putting out this publication – I found it to be incredibly helpful! Its funny when I think about it – I never thought I or anyone else would be able to make a cosmetic product- I guess I always thought robots made them or something! haha You know I always read the ingredients before I purchase a product – a lot of them look so complex and technical (this coming from someone with a background in Mech engineering..) – it never occurred to me that the public had access to these ingredients and that I could actually mix them together to make something that worked. Thanks again!

  • A ELBADRY 06/05/2013, 10:05 am

    Thank you for the effort and precious info. I’m looking forward for more info.

  • Gill 06/04/2013, 12:10 am

    Overall I thought a helpful report. I was pleased that it reinforced what I already knew, which was reassuring- while also offering some new ideas.

    One area I have some questions on though- As you state: Ingredient listing is meant to be in order down to 1% and then 1%, and below that, in any order.

    However when an ingredient is a blend of several components/INCI labelled compounds, often the supplier /manufacturer does not give the relative proportions of those individual ingredients. So while the formulator might add the blend in at say 3% the individual components of the blend wont be their at 3%. In this situation what is the formulator meant to do when listing the ingredients?

    In (most?) instances I suspect that the formulator just lists the ingredients details of the ingredients sequentially and as it is very difficult to tell what groups of ingredients represent blends from the ingredient listing, this could be misleading. I am aware of some ingredient blends that are sold which contain more than of 6 listed ingredients . Any thoughts on what to do to identify and deal with these situations would be appreciated.

    • Perry Romanowski 06/05/2013, 8:29 am

      You should really never be in a situation where you work with a supplier who won’t tell you the relative proportions of the ingredients in a mix. At the every least they need to tell you what the INCI label name would be given your formula.

      In truth, if the ingredient is used at less than 1% then it doesn’t matter. And that is 1% active. Most ingredients that are a mix of 6 or more ingredients are typically mostly solvent.