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


  1. Lorraine

    Liked the book a lot, in fact, the content was so good I started listening to your podcast. You make a subject that can be at times dry, very funny and enjoyable to listen to.

  2. Mya

    Hi Perry
    Thank you very much for your report. for me, I am new chemist and want to learn many things from you. So please keep sending the free report to me. in this report, I have understand many thing to learn about the launch of cosmetic according to the country compliance, about the trademark and brand development. base on your report now I got some ideas to update with the following things. Thanks!

  3. Vivey

    Very informative. Thanks

  4. Wes

    Very helpful and informative to start up a formulation for little formulation experience user

  5. Tiare

    You are very generous to share your knowledge! I have read this and will follow the guidelines. Thank you so much!

  6. Ngan Phan

    Dear Perry,
    In “How to Knock off Any Cosmetic Product” report. Step 8, for skin lotion test, using instruments like Novameter, Cutometer, Twistionmeter, or dequamation dics.
    What parameter is for each instruments, respectively?

    1. Perry Romanowski

      That’s a complicated question without a simple answer. It really depends on the type of test you are running and what you are trying to prove / achieve.

  7. Ngan Phan

    Thanks a lots, Perry
    I have just known this website through my friend. I am so surprise that all of things you share are very practical for a R&D. It’s sure that I continue following this website to extend my knowledge.

  8. Cindy

    Very informative and you explain everything in very simple terms. I am glad I found you. You have a fan. Thank you

  9. Gabriela

    This e-book was a great inicial help, to get an Idea of how to start.

  10. Ameri

    It was helpful and informative. Thank you very much

  11. Tonya

    Tha information was helpful and would be a good basic start for anyone interested in formulating.

  12. Matt Nourse, RPh

    Very potentially useful. I need more information and education so I can get a better grasp on cosmetic formulations, duplications, etc.

  13. Ottilia

    The information is useful for a beginner like myself. Thanks Perry

  14. Lynnet

    The content is going to be helpful to me since am starting to formulate my own products soon….just what i needed :), though how can i access a spread sheet program to arrange my formulas ..i have never used one.. plus what is INCI in full and how can i access it as well?

  15. Carine

    I have been making my own cosmetic products for several years but I have only tried to duplicate 3 or 4 products. This book will certainly help me, thank you.
    I’ve got a question though about the 1% that may not shows in American products ingredients list. I thought this 1% could only concerns some ingredients specially formulated by the company (kind of secret ingredient), something that could not be found in other brands. Could you please confirm that this 1% could be anything from fragrances to preservatives?

    1. Perry Romanowski

      Yes, 1% could be pretty much any ingredients.

  16. Kiet

    I’m R&D & formulator in cosmetic products but think you’re information and website is great and useful.

  17. shervin

    that’s very helpful
    tank you

  18. Arti Gaur

    Hi, I own a small organic skin care business. The information we found in this e-book is tremendously useful, it’s simplified, practical and it’s so easy to access the latest of what’s going on in the cosmetics world just sitting at your desk. Many Thanks Perry..

  19. Shanqiue

    Your 10-Step booklet is very informative and helpful to anyone who is venturing off into the cosmetics industry or world. I’ve always wanted to learn chemistry and I have a love deep down for cosmetics, beauty all health matters alike. Thank you for sharing! This and your mini series will be a great mother’s day gift for my mother and I lol. She has her own cosmetics line and I am in the process of beginning mines. If she is interested, she could greatly benefit from the information in your series.

  20. Sajida

    This is providing a great information…it has helped me to some extent.
    But i wish to get the membership of Chemist Corner……guide me about that please..

  21. Christo Gonawela

    Dear Perry,

    The information you provide us is extremely valuable. Giving us a guideline with our objectives to enter the personal care business.

  22. Rosette

    This is very helpful.
    I want to try copying other companies formula.,
    Iam interested to make ups cosmetics and i want to know if where i can buy a raw materials that i will be needed to make or copy a make up specialy lipstick.
    Thank you in advance.

  23. Rick Fox

    Easy to read report and useful information. I enjoyed getting through it. Thank you Perry.

  24. Patrick Fu

    wonderful report

  25. Patrick Fu

    A very helpful report!

  26. Anjali

    It was very informative! Thank you!

  27. John

    This is an excellent book for beginners…thank you.

  28. Sreedharan Chalil

    Sorry for the delay in posting my feedback. The information provided is highly useful.

  29. Tammy

    I was thrilled to see your site because even though i was an asst. to a chemist at a previous job, i still have so many questions about the cosmetic industry. Thank you so much for the wonderful report. It gave me an idea of where to start and I will be back here to read often!

  30. Fatima

    I’m R&D manager & formulator in cosmetic products but think you’re information and website is great and useful.

  31. Sreedharan Chalil

    Sorry for the delay in giving my feed back. Glad to note that the information provided in the article is rich and highly useful.

  32. Amy

    It is very informative and thank you for download.

  33. Gerald

    I have wanted to know more about the ingredients in cosmetics for a really long time. Whenever I would look at the list on a box or bottle, it was confusing. What is this really long named substance. Should I be using it. Can I make something myself. Peter Romanowsky answer some of these questions immediately, and showed where I could go next to learn more. It’s like having a friend in the cosmetics business. Thank you, Peter.

  34. Dr.Bassam Bitar

    It is an excellent way to get all possible info about subject

  35. mohana

    Hi perry, thanks for ur download.It is very helpful for the beginers.

  36. kelvin

    the report is good just that i come from a poor country where its hard to sell especially new products

  37. Tâm Trần

    Very helpful and great

  38. Lara Brown-Notman

    Your article was very informative, clear, and gave plenty of reference. Thank you!

  39. Hayden

    This is fascinating. As someone with a background in formulating epoxy resins, my transition to cosmetics has been a steep learning curve. Your book has been, and continues to be, an invaluable assistant. Thank you Perry.

  40. cynthia

    very insightful and quite detailed.

  41. David

    Helpful introduction.

  42. Candela

    Very useful information to start off with. Clear and concise.

    1. ann-marie

      It would have been helpfull if I had this document a year ago. I went throught the same steps.

  43. Priscila

    I really loved the report and read it a couple of times. I feel fortunate for having access to all this information! Thank you so much 🙂

  44. bella

    It was hard to understand since I am not a chemist. I wanna start a beginners’ class on cosmetology..

  45. Lucy Phiri

    Very useful information, have learnt a lot from it, it’s great to have this kind of info especially if you are trying to make similar products, the report has also great tips which will help in my future formulation. I am so glad that I joined up, this will definitly benefit me for what am trying out. Great stuff

  46. vishali

    Very helpful and great

  47. Darren McKelvie

    Very helpful article. Some great ideas in this book.

  48. Tricia

    Lot’s of great info, but I am more interested in creating all natural products. Do you have any advice on how I can use your site for that? Thank you!

  49. HG

    This book gives an interesting insight into the manufacture of consumer products. Thank you for making it available.

  50. Hala Gari

    Great report. Easy to understand and rich in informations.

  51. sunlei

    this is a very useful report. but i can’t make a difference between surfactant and emulsifier. what’s the meanings of primary surfactant and secondary surfactant.

  52. Pierre

    Hi Perry

    Thanks for your free book “How to knock off any cosmetic product”. It provided some good guidlines on how to start the knock-off process.

  53. Obdulio Cerceño Ch

    Hello Mr. Perry Romanowski.

    Thanks a lot for the download Report. It is very useful tool for guidance. I am a empiric inventor and like to read. My area is not cosmetics. Although, I am working and developing nanotechnology products at local level. In doing so, I am so glad I found your site because helped me greatly to be more efficient about finding clues and important data that will help me to develop some formulas I am searching for.

    Thanks again!

  54. Chelly abd Me

    Hi Perry,
    Your recourse list is wonderful. Thanks so much for putting this list together. It is invaluable

  55. Paulo Vitti

    The report really goes to the point in a practical and pragmatic way. It can be a really helpful tool for startups and new entrepreneurs who sometimes want to “reinvent the wheel” when entering the cosmetics business.

    Thanks a lot!

  56. sunlei

    it’s usful and easy to understand. thanks a lot

  57. Zue

    Hi Perry,
    Thank you very much for putting together this excellent book! While it is very informative and very helpful to both young and experienced cosmetic chemists, it also provides encouragement and inspiration to those who are faced with challenging and difficult projects. Would it be possible for you to include general tips on how to deal with unstable formulas?

    1. Perry Romanowski

      Hello Zue – I’ll have to work on a different book for that. We’ve written a bit about that elsewhere on the blog so I’d suggest you do a search or look through our forum.

  58. Ndiyo Hilaire

    I got the formulation it helpful I ws happy bcs most of ingrediens and formulation Ineed is for the hair like the dread locks gel & hair food, spray thanks so much

  59. Ghanshyam sharma

    Its very informative and useful thanks

  60. Ieva

    Thanks. The guideline was simply and easy to understand.

  61. Candis

    Great insight, easy steps for cosmetic beginners, I just had a small idea , these small tips help with confidence. Thanks

  62. Nk

    Nice one sir.learnt a lot of lessons. One, to be perfect one must have practiced several times.Thanks for your kind work.

  63. I. Walele

    Excellent coverage of the topic. Helpful hints.

  64. Patrice

    Great step by step outline. Easy to follow for beginners. Thanks Perry!

  65. vanessa ultreras

    Hi , I’m really surprised about this guide support. I am very interested in publicizing products that don´t harm our health,
    i live in mexico , we really need quality products and this information is perfect to start.
    Thank you

  66. hdkh

    Very great to kickstart a career in cosmetic industry, thanks!

  67. Elmor

    This is brilliant!! Thanks Perry. This not only helps with cosmetics manufacturing but also with detergents. I’ve been looking for something like this for months now. Great job!

  68. Rashmi

    Of course much useful information for beginners like me..thanks..

  69. Wcyun320

    Very useful and insightful information. Very much appreciated for sharing.

  70. asa

    wow!very insightful…really really helpful

  71. Cristina

    Thanks for putting together so much info. Very useful

  72. Dorothy

    Thank you very much, Perry. A great primer for starting out in the business.

  73. Fred

    Having developed interest in cosmetic formulation, your site have given me more insight in a new way of cosmetics

  74. Ruth

    Just what I need to get more confidence with my formulations. Thank you for sharing

  75. Bolanle unor

    Hi thanks alot for this, I found every bit of it interesting and educating and I look forward to gaining more knowledge

  76. zia aghdam

    Dear perry
    Please be informed that we are producer of fruit seeds oil in iran almost use in cosmetics,skin care hair care would you please let us know how we can introduce ourselves to other endusers all over the world,as our quality is best one in the world as iran climate and organic fruits,for example our pomegranate seed oil has content of 84% punicic acid which is highest quality in the world and we think it is right for every consumer companies in the world to be informed regard this reality to supply them to have more efective skin care hair care cosmetics products. please visit us in http://www.perfectola.com

  77. Melanie M

    Very interesting read. However it would be nice to have more information on the different lab tests that can be performed. Also, gender neutral pronouns should always be used if the author is talking about the reader.

  78. Zaid

    Hey there
    Am really happy that i found your website, its helpful, useful and genuine. The book “How to Knock Off Any Cosmetic Product” is a great start for people like me who is new to cosmetic chemistry and cosmetic industry, hope to see more of such practical and straight to the point books in the future.

  79. Samantha Chepi

    I found the report very useful for someone like me that wants to build a cosmetic brand and not really sure of what to do or where to start and everything else. Although I didn’t understand most of it because I am a beginner in this category, you made it easy for me to at least grip on the main Do’s and Don’t’s

  80. Tren A

    Good basic introduction.

  81. Dimakatso

    Thank you for such information.
    I am starting to look at labels differently now. Now they make more sense.

  82. Marie

    Thanks very much for the great article. I found it very informative and useful.

  83. Mattu

    Every points on your report is very useful . I’ll try when i learn formulation . I am just a beginner

  84. Mattu

    Thanks Perry.
    Every points on your report is very useful . I’ll try when i learn formulation . I am just a beginner.

  85. Aggie

    Thank you very much for sharing your knowledge for free! Im hungry for more! 🙂

  86. Annalisa

    I thought your information was very generous and very helpful. I have taken all your advice on board and am looking forward to more lessons from you ! A great service and thank you very much!

  87. john karlik

    a good intro, points the direction to find out what you do not know

  88. Margaret Anne

    Good content – gives me confidence to start formulating!

  89. Ana

    Thank you so much for the e-book, i will practice some of the tips. very excellent written by the way

  90. Gisselle Ramirez

    Thanks for everything I’ve learned about chemistry and it was very helpful.I do appreciate everything mostly this because its what I always wanted to do

  91. Candace Wallace

    I found the 10 steps formula to be very informative as I dive deeper into learning and becoming a part of this fascinating and evolving industry. I am excited to learn more through this wonderful training course and the connections that I will inevitably encounter during my journey.

  92. carla jepson

    I thought it was great…… will probably re-read it a few times. I would love to get actual formulas that are for formulating organic skincare (from home). I find the preservative issue with a lot of the new accepted emulsifiers really tricky. Most of the ‘natural’ new preservatives all seem to have down sides – viscosity reducing, PH sensitive etc. Its a mine field out there for non chemists like me!

  93. Vijaykumar R Zala

    Hi perry,
    Basically i had done my M.Sc in chemistry and I moved in cosmetic industry.
    May be after one year or more than that i am able to get the complete information to “knocking off” a product. I appreciated the effort and hope more of these come in the future because for fresher it will be very very helpful.
    Thanks a lot dear.

  94. Dale Ann

    I found it a nice step by step tutorial on how to start out formulating.

  95. Nicoleta Dimitrova

    Very helpful and practical information. I hope the “1% Rule” is applicable in Europe, too. /I’m from Bulgaria/.
    Best regards,

    1. Perry Romanowski

      It is applicable in the EU.

  96. Anthony Norris

    I found the information very helpful.

  97. A

    An excellent document, written in an accessible style. Some of the information given is (or should be) commonsense but overall a very useful and informative report. Thanks, Perry!

  98. Na

    Neatly organized and helpful ! Great way to start 🙂

  99. Mike

    Nice, very helpful. Thanks for being honest, keep it up and be blessed.

  100. abbas

    Professor Perry
    Dear Thank you with all my heart your business
    This beneficial knowledge by serving humanity.
    I hope to communicate with you time. I work in detergents and cosmetics
    I will be delighted to send me about my Formula NES
    Thank you ….. from Iraqi Kurdistan Abbas

  101. Sajata

    I’m delighted to have discovered “Chemist Corner”. “How To Knock-Off a Cosmetic Formula”, it is a wonderful tool for my research. All the information you’ve provided is nicely comprehensible and concise for a novice like myself. Thank you!

  102. Cassandra

    Very helpful tips!

  103. Vladana

    Very useful, thank you very much!

  104. Farzan

    Very useful…..it was really helpful.

  105. Okon ekpa

    The book gave some basic information like the order of listing ingredients on the product labels.but what I really need is how to create recipes of my own or modify existing ones to generate new products as the ‘knock off’ process is really time consuming.

  106. Tahir

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

  107. ben sam

    thanks very much for the information. really helpful indeed!

  108. Dragos

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

  109. hailey

    Thanks for your interesting lessons! very helpful!

  110. Marzia

    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

  111. Choma Matale

    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.

  112. Simona

    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.

    1. Perry Romanowski

      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.

  113. Mona

    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!

  114. Luis

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

  115. TUAN

    Thank you for your interesting lessons

  116. Carlos

    Very useful, thank you very much

  117. Stefano

    Very concise and helpfull for starting formulators.

  118. Eva

    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.

  119. Valerie

    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?

    1. Perry Romanowski

      See our website for articles about natural formulating.

  120. Ugochi olabisi

    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.

  121. Navya

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

  122. Ugochi olabisi

    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.

  123. Meg

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

  124. azlan

    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

  125. valentine kafata

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

  126. Jackie

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

  127. Thivashkar

    Thank you for this free cosmetic science course.

  128. Chichi

    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.

  129. Danielle

    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!

  130. Gary jones

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

  131. Faiyaz Ahmed

    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.

  132. Allan N. Ruiz

    This was useful thank you for sharing this information.

  133. Ashley Powers

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

  134. Sharon

    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”.

  135. Crytal

    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.

  136. Ree

    Thank you, very informative.

  137. Emmanuel SGI

    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.

  138. Thalia

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

  139. Kyei

    very educative and informative.

  140. Dana

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

  141. Maggie

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

  142. Tina

    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

  143. Vera

    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

  144. Jackie

    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!

  145. dennis hague

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

  146. Michelle Wallace

    Very good info!

  147. Cassandra Gonzalez

    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 .

  148. Jodi

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

  149. julia

    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.

  150. Colin rodgers

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

  151. Rasheed

    Dear Mr
    Perry thank you it’s useful report

  152. W

    Very informative.

  153. Silvana

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

  154. Rocky

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

  155. Agustin Saucedo

    Very interesting and useful, thanks

  156. Agustin Saucedo

    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.

  157. krisztee

    It was helpful and useful 🙂

  158. chuks

    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

    1. Perry Romanowski

      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.

  159. Carla

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

  160. NR

    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 🙂

  161. Afroditi Tsesmesidou

    it was interesting

  162. Idowu afeez

    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

  163. Stephanie

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


  164. Terry

    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.

  165. Juliet

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

  166. joe wolf

    Thank very much for the oppertunit to start the course

  167. Maureen Tarulli

    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!

  168. Ashish Pawnikar

    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.

  169. Luisa Guevara

    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.

  170. Monique

    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


    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.

  172. Jamie Carman

    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

  173. Donna

    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.

  174. Lindiwe Gontsi

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

  175. Naima

    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

  176. Edwin Stevenson

    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

  177. May

    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.

  178. Marja van der Heijden

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

  179. Marco Rafael

    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.

  180. tn

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

  181. Domingos J C Spinelli

    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

  182. Gerard

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

  183. Dr.usama

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

  184. Kristal Bull

    Useful primer on formulating natural products, thank you

  185. Haile

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

  186. Gagandip

    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

  187. Marian

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

  188. karen

    Thank you so much. Very insightful

  189. Anj

    This was extremely helpful.

  190. michelle

    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.

  191. Alex

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

  192. Abygale

    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!

  193. Arcadi

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

  194. Rhi

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

  195. D'Mone

    Great Information and presentation..very informative..Thanks

  196. Marek

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

  197. Emily Chang

    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.


  198. parisa

    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.

  199. Megha

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

  200. Loukas

    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.

    1. Loukas

      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?

  201. Suquished

    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.

  202. Alli

    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!

  203. J. Eily

    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

  204. Sam

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

  205. Ak

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

  206. h.ghandour

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

  207. Huyen Anh Kieu

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

  208. Una

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

  209. Maeana

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

  210. Dawn

    Good read. Very informative. Thank you!

  211. Joe Murphy

    Report is great, an excellent resource and introduction!

  212. Sharon C.

    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.

  213. Ken Cogle

    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.

  214. Moreen Kasule

    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.

  215. Sig

    Great read, great information, thank you!

  216. neda

    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.

  217. jorj

    Think you fre much

  218. Sabrina

    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 🙂

  219. Abdul

    Great info on the how to dupe a product

  220. Koloniaina Rasolontsivery

    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.

  221. Rugged

    Thank you for providing us with this service.

  222. Yh

    Concise and very easy to follow! Thanks!

  223. Mathuros

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

  224. satish

    thank u so much for ur information.

  225. Amy

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

  226. ollie

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

  227. Colin Ogle

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

  228. Sujee

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

  229. Sujee

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

  230. godwin chidinma

    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

  231. godwin chidinma

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

  232. Anastasiia

    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.

  233. jayce

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

  234. Jackie

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

  235. isra

    very helpful and great site

  236. Mustafa Hamido

    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.

  237. missie

    FANTASTIC piece to read and gain knowledge.

  238. ib stowe

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

  239. Mike Smith

    great job,keep it up.

  240. Mike Smith

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

  241. Jessica

    Great. I have learned a lot ~

  242. orlando villalobos

    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

  243. Dian

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

  244. Tess

    Very good overview! thanks.

  245. Melinda Ford

    Excellent as a beginner I found it extremely helpful

  246. Meghana

    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.

  247. Lasairiona

    “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!

  248. Sevda Dogan

    Very good report; including useful information for the cosmetic lovers

  249. Carrolle

    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.

  250. Mary

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

  251. Lenny You

    Very good to learn and thank you for your knowledge.

  252. Jos'e

    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.

  253. Andrea

    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.

  254. Nelly

    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.

  255. Bill Basinski

    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.

    1. Perry Romanowski

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

  256. LANCE0811

    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.

  257. Patricia

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

  258. Jeff Martin

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

  259. shima

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

  260. Jm

    Helpful thanks!

  261. Karim

    Great ! All your courses are very comprehensive and complete

  262. Kira

    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.

  263. Ms Jan

    A very informative and interesting report! Love it!

  264. Michelle

    Lovely guide! Very useful and to the point.

  265. Rano

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

  266. Ahmad Bakhsh


    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.


  267. Maria

    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!

  268. Ahmad Bakhsh

    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.

  269. marie

    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!

  270. Daniel Le

    I found the information so useful and relevant in understand cosmetics

  271. Dr Y K Gupta

    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.

  272. Val

    Very useful information!

  273. Darjan

    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.

  274. Mary Jackson

    very informative, thank you for sharing the info.

  275. Imad Alhaddad

    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 🙂

  276. Ann

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

  277. S

    I thought it was a useful introduction to DIY.

  278. shirzad chamkouri

    Dear sir

  279. Pete

    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.

  280. Okwy

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

  281. Ann

    thank you Perry

  282. Dave

    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.

  283. Reba

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

  284. Jill Neal

    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

  285. Christiana

    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.

  286. Tanawan

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

  287. Didi

    Quite interesting very informative and eye opening

  288. Justine reyes

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

  289. K.M.M.Ebrahim

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

  290. Tanawan

    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.

  291. Donna

    Very helpful information. Thank you!!

  292. Kim Young

    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!

  293. Yanee Pongpaibul

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

  294. Wacu

    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!

  295. Greg

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

  296. Denise

    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!

  297. Panos Kontodaimon

    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 !!!

  298. jime

    I things for information very good

  299. Cole Olabisi

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

  300. Olga

    Very useful! Thank you very much.

  301. Raquel

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

    Thank you.

  302. Itoro Ekanem

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

  303. izzie

    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!

  304. Tiffany S.

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

  305. Antonios Charalambides

    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.

  306. Julie

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

  307. aguther

    what a great help it was. 🙂 #insiderinfo

  308. Lydia Naadu Tawiah

    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.

  309. Christine

    Hey Perry,

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

    All the best,


  310. Zarina

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

  311. Deborah Green

    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.

  312. JC Guerrero

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

  313. Nicole Williams

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

  314. vandita

    thank u so much..i love ur reports.. 🙂

  315. Lukas

    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.

  316. Gifty

    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.

  317. Devesh Tejwani

    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 ..!

  318. chaminda Jayanath manawadu

    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.

  319. Shanna

    Thanks so much! Really enjoyed the wonderful info:)

  320. Anastasia

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

  321. Gathy Brutus

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

  322. Brian

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

  323. Nancy

    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.

  324. Meg

    Thanks, a very systematic approach.

  325. daya pathak

    Very explanatory & Helpful.

  326. Navi

    Really informative with an effective technique and great explanation!

  327. rosabell jader

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

  328. mahmoud

    Thanks a lot it is wonderful and full of information

  329. Rajesh

    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.

  330. Johanna

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

  331. Johanna

    Very good general Information. I appreciate this website.

  332. mohsen

    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

  333. Venetia

    Informative and helpful.

  334. Boyce

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

  335. Carol

    I found your article very useful and interesting!

  336. Victoria

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

  337. Fransiscus Chandra

    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.

  338. Stephen

    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.

  339. Munira Khambata

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

  340. sanjiv

    informative and very practical

  341. Amanda

    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.

  342. Erin

    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!

    1. Perry Romanowski

      Thanks Erin! Good luck with your project.

  343. Lola Simon

    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

  344. James

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

  345. poopak

    Dear Peery
    tnx a lot for sending this useful article.

  346. Vivian

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

  347. DeAnn Jackson

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

  348. eugene

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

  349. Angela D

    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.

  350. genic

    How can I formulate a product formula

  351. Giulia

    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,

  352. Dominique Apostol

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

  353. Ukachi Igbo

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

  354. Janani.S.R

    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

  355. simone

    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.

  356. betman

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

  357. Jox

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

  358. Walter Wellman

    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!!!

  359. Donald Pullum

    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.

  360. Janine McNamara

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

  361. Gus

    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.


    1. Perry Romanowski

      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.


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

  363. Lillian

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

  364. Mardi OBrien

    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.

  365. Lettie

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

  366. Peggy

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

  367. Little Tabby (Tania)

    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

  368. Hayde

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

  369. Claire

    I loved it, very informative . Thank you very much

  370. asfaw

    very good and informative

  371. Maria Vargas

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

  372. Jennifer-Alayne

    This download was full of valuable info. Thank you

  373. Jennifer-Alayne Smith-Toines

    Loving every minute of it

  374. Christina

    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!

  375. LMW

    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.

  376. Jasmine

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

  377. Trang Vu

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

  378. hassan

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

  379. Rbn L

    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!

    1. Perry Romanowski

      Thanks for the kind words!

  380. Maria

    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

  381. Serena

    Valuable information/ Looking forward to completing formulating course.

  382. Diane

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

  383. Kadriye

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

  384. Dimakatso

    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.

  385. Antonia

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

  386. Ramsty

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

  387. Yeukai Chibovero

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

    1. Perry Romanowski

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

  388. Allison

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

  389. Lesley Thomson

    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!

  390. piu

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

  391. Margi

    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 !

  392. B

    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!

  393. ramoo shankar iyer

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

  394. Tova Langhans

    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!

  395. Rowena Allan

    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.

  396. Valerie

    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!

  397. Dawn Ireland

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

  398. marilyn

    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.

  399. Mae

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

  400. Carolnee

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

  401. Caroline

    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!

  402. Daphne

    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.

  403. Bill Basztyk

    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.

  404. Rocio García

    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

  405. Genevieve

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

  406. Joan

    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.

  407. Ivana

    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.

    1. Perry Romanowski

      Thanks for the kind words.

  408. Andrea

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

  409. Olatunde Richard Ogunleye

    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.

  410. Nono

    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.

  411. Zoraida Santana

    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.

  412. Kelsey Luna

    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

  413. windie m. trono

    very helpful for starters like me…thank you!

  414. Harry

    What a wonderful guide! I like the detailed instructions.

  415. Vishwanaden

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

  416. Sam

    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.

  417. Tounie

    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

  418. Evelyn Fontanilla

    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

  419. onels

    Good, I like it, its working…

  420. Jake

    Great report very helpful

  421. Chris

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

    1. Perry Romanowski

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

  422. joshua

    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.

  423. Raheem

    Great information cant wait to read more articles!!!

  424. el'amor

    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?

    1. Perry Romanowski

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

  425. debbi

    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.

  426. Karen

    Great resource. Very informative and helpful. Thanks!

  427. riviere

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

  428. beautyqueen

    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.

  429. Marie

    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.

  430. Jeff hogrefe

    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

  431. ehkamul haq

    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 !!!!!

  432. Maria Ruiz

    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,

  433. Jasmine

    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

    1. Perry Romanowski

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

  434. Kelly

    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.

  435. Emma

    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!

  436. Adib

    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!!

  437. ra

    Dear Sir

    Will please informe me more about the cosmetic formulating coarse


  438. Omayma

    Very useful thank you!
    I look forward to learning more and more 🙂

  439. Neha

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

  440. Peter

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

  441. Amy S

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

    1. Perry Romanowski


  442. pat

    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

    1. Perry Romanowski

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

  443. Hamid Gani

    “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.

  444. cassie

    Thank you so much! It’s very useful

  445. Bernardo Mora

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

  446. Alicia

    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!

  447. Christina

    extremely helpful!

  448. Tawanna

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

  449. jane

    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.

  450. Babs

    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.

  451. John (braveheart)

    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.

  452. Mahavir

    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 !

  453. syed abdullah

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

  454. tari

    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.

  455. Margreat

    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.

  456. Veronica

    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!

  457. Roza

    Thank you so much. Lots of useful information. 🙂

  458. Rosa Kazemi

    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?

  459. Mazuru Gundidza

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

  460. Ashwani Khanna

    Very help full & informative .thanks

  461. greg barton

    I really enjoy these presentations. Thankyou

  462. rahul rao

    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.

  463. Paulene

    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.

    1. Mohammed Anwar Hossain

      Dear Sir / Madam,
      Have nice day, pls inform me make up kit & Eyeshadow cake makeing Formula.
      B regards

  464. june lim

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

  465. Yong Rafidah

    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

  466. greg

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

  467. Joycelynn Nelson

    The content is very helpful.

  468. Noura

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

  469. fortune

    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

  470. Chayaphon M.

    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.

  471. A baker

    Informative and useful.
    Thank you.

  472. sfe

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

  473. Shani Vermeulen

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

  474. Mr Amit

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

  475. Alessandra

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

  476. Ivana

    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!

  477. Gopal Sharma

    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.

  478. Jeanne

    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!


    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

  480. Johan

    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.

  481. Lori Lagos

    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!!

  482. April Luna

    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

  483. Joni Catanzarite-Pecsi

    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.

  484. gam

    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

  485. Kathy Jurn

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

  486. Tanvir Abdur Rahman

    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.

  487. keyshawn

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

  488. Jennifer S.

    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.

  489. Anna

    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

  490. boudjemaa

    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.


  491. Juthi

    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 !

  492. Mariana

    Thank you!

  493. Glenn Forrest

    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,


    1. Perry Romanowski

      Thanks for the kind words Glenn

  494. Joanetta Ramos

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

  495. cristina

    Very useful, thank you!

  496. Catalina Rombaut Grosfeld

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

  497. kareem El-Rweeny

    Thank u vvvvvvvvvvvvvvery much

  498. Tobiah Belcher (PUSH products)

    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

  499. Zevia

    The tips are so helpful !

  500. azade akbari

    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

  501. Dakalo

    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!

  502. Sarah

    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!

  503. Edison Subala

    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.

  504. Melanie

    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!

    1. Perry Romanowski

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

  505. serene

    Very informative and helpful. Thanks so much.

  506. Marisa

    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

  507. Tan

    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!

  508. Mshazi

    very helpful information thanks

  509. Mshazi

    wow , helpful tips love it

  510. Kathy Patton

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

  511. stephen muhoro

    i would appreciate to learn more on cosmetic making.

  512. John

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

  513. vidhya

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

  514. Kevin Johnson

    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,

  515. Judith

    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!

  516. chris

    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

  517. Ali Raza Asif

    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.

  518. Anonymous

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

  519. Stella Bangura

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

  520. ILIANA

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

    1. Ali Raza Asif

      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?

  521. Angela K. Sams

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

  522. Patricia

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

  523. Miriam

    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.

    1. Ali Raza Asif

      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.

  524. Ime

    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.

  525. Jessica Aurora

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

  526. Debra Womack

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

  527. Maite

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

  528. Kristen

    Very useful information. Thank you for making it available!

  529. Shanell Edwards

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

  530. Dana

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

  531. Ang

    I thought the information given was very comprehensive and detailed.

  532. Cindy

    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.

    1. Perry Romanowski

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

  533. zafe li

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

  534. lulu


  535. Siddharth Jain

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

  536. Steve DeCesare

    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

  537. shrads

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

  538. Akram

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

  539. Bhawna

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

  540. Sandra

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

  541. Sandra Britton

    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.

  542. farzaneh

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

  543. farzaneh

    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

  544. D.Taylor

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

  545. Latasha shells

    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! !!

  546. Lyn Hughes

    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.

  547. Marleen Maras

    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.

  548. dean grillo

    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.

  549. Jose


    “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.

  550. samantha

    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!

  551. callixtus nwaehiri

    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.

  552. Jennifer

    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

  553. Diana Ivanova

    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.

  554. ing

    Great work! very practical and informative!

  555. VANESSA

    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

  556. tadros moussa

    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

  557. Dinesh Rathod

    Its really help full and ideal to formulate new cosmetics products

  558. Sreedharan

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

  559. ellen Williams

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

  560. sewankambo

    its really fantastic develloptnt to our comunity !

  561. moe

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

  562. Martin

    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.

  563. helen

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

  564. Amy

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

  565. Cindy

    very good informative report for beginner.

  566. Jules

    Interesting read!

  567. salwa

    thank you for leading us in the write direction

  568. henry han

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


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

  570. Cu Buivan

    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 ?

  571. Billy Mkhasibe

    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.

  572. kerry

    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.

  573. Leigh

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

  574. Kavita

    Good starting point for a beginner.

  575. Diana W.

    Thanks so much, very helpful!

  576. vasu vora

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

  577. pw

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

  578. pham quoc viet

    the book is good and useful.

  579. Joy

    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.

  580. Eliza

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

  581. Terah

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

  582. arezou

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

  583. Nat-Lee

    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!!

  584. NguyenTruong

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

  585. Kanjanee

    Thanks for the information. It is very usefull.

  586. Adnan

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

  587. Ellie

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

  588. Alka

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

  589. Donna Winters

    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!!!!!

  590. fathanah

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

  591. Rachel

    The report was very helpful and informative

  592. Marianne

    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!

  593. Martins

    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

  594. kat

    Interesting I love this industry

  595. Richard F. Sappington, Jr., M.D.

    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

  596. efat

    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.

  597. Sundae

    Very Informative

  598. Sierra

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

  599. Vasilis Kotsonis

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

  600. tee

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

  601. James

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


  602. Arbi

    It’s very interessing

  603. Bridgewell Nkosi

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

  604. amr

    It is very usefull

  605. Mayra Gonzalez

    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.

  606. Luis Salas

    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.

  607. michelle

    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!

  608. Priyamvada

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

  609. Dede

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

  610. Paulette Brown

    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.

    1. Perry Romanowski

      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.

  611. Hitesh Patel

    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 ?

    1. Perry Romanowski

      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.

  612. bassam

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

  613. Marina

    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.

  614. NADIA

    Interesting. Thanks for creating such a document.

  615. mariem

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

  616. Melissa

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

  617. Lily T

    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.

  618. khalid baig

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

  619. lama al haushey

    I appreciate your work and i find it very useful

  620. Eduardo

    Very practical guideline; I already started using it

  621. IDOWU

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

  622. carmelo

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

  623. Sheena

    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.

  624. Donna Dimick

    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!

  625. J Castellano

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

  626. Valerie Gallaway

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

  627. Liliana

    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.

  628. Liliana

    Thank you! I think is very useful and interesting.

  629. Steph

    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.

  630. Luuk Jager

    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

  631. Mike

    terrifically useful

  632. Lonnie Hart

    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!

  633. Victoria

    Fascinating and useful.

  634. Sheri

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

  635. dimos

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

  636. Lyz

    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 🙂

  637. Byron Muir

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

  638. AISHA




  639. Susanna Jordan

    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!!!

    1. Mihajlo Malovic

      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

  640. ali hosseini

    i want information about lip stick’s pigment.

    1. Perry Romanowski

      Search our other articles for that.

  641. jacinta

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

  642. riana

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

  643. ramona

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

  644. María

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

  645. Yvonne

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

  646. Al

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

  647. Lisa Proctor

    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.

  648. tp

    The book has been very helpful, thanks a lot!

  649. Nicole

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

  650. Aleksandra

    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

  651. dimitra

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

  652. velu

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

  653. John Heath

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

  654. Traci

    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

  655. Goh keng siang

    Very useful report for beginner. Easy to understand!

  656. shawna

    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.

  657. Les

    Very interesting, Gives me a lot to think about.

  658. Denys Davis

    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

  659. mitra

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

  660. ayman

    very interesting and useful information

  661. Liz

    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!

  662. L.A.

    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.

  663. Leopoldo Sucre

    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

  664. KM

    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!

  665. Gerasimos Pefanis

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

  666. pedro ortega

    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



  667. di

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

  668. Laurie Brown

    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!

  669. somaye markazi

    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.

  670. JLB

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

  671. Odile

    Very interresting indeed
    Keep going

  672. Julie

    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!

  673. Crystal Moore

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

  674. Tiffanie Garrett-Reid

    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

  675. Fred

    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

  676. Silvia

    Really helpful!

  677. wendy turpin

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

  678. marta

    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.

  679. Rachael Bempomaa Apenteng

    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.

  680. Maya

    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.

  681. khaled elkomy

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

  682. Marius

    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.

  683. Wendy

    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.

  684. IHK

    Direct and very helpful assistance for start up.

  685. amensah

    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.

  686. Kerstin Hagstrom

    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.

  687. uzor cally

    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.

  688. Jae Smith

    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!!!

  689. Bob

    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.

  690. hayah

    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

  691. Kathleen

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

  692. karabo

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

  693. manin tsolo

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

  694. Lyn

    It is very easy to read even if