This lesson introduces you to 8 science topics that are important in the cosmetic industry but are not usually covered in college course. It includes information about the following topics

  • Surfactants
  • Emulsions
  • Fatty Acids
  • Silicones
  • Polymers
  • Skin biology
  • Hair biology
  • Chemical Nomenclature

Download the slides

If you would like to download the slides, feel free to do so here.

When you’ve finished the lesson, please leave a comment and let us know what you think.


  1. Avatar

    Very helpful. I enjoyed it

  2. Avatar

    Excellent video. Very clear and fully informative. Thanks!!

  3. Avatar
    Dawn Lawien

    Fantastic video. I am not a chemistry major and yet this video really spoke to me. The information is presented in an easy to understand way. Thank you so much for dispelling the mystery.

  4. Avatar

    thank you very much pery for this lesson. it was very straight forward and clear, i’m ready fro the next lessons

  5. Avatar
    Yi Xia

    The video is informative.

  6. Avatar

    Thank you for this info. Especially important was the nomenclature.

  7. Avatar

    Wonderful lesson with great illustrations.
    It’s indeed what school did not teach.
    Thank you so much Sir.

  8. Avatar

    Great video. Very much informative. Makes me more excited to learn deeper knowledge about cosmetic science. Good job!

  9. Avatar

    A very insightful lesson, many thanks looking forward to the next lesson.

  10. Avatar
    Muhammad Usman

    It is a useful and have amazing knowledge about cosmetics industry.

  11. Avatar
    Nadia Z

    In depth explanation of molecular compounds/structures and the WHYs behind them. Also fantastic info that makes sense on the Naming Cosmetic Compounds catagory. Thank you for breaking it down! Sincerely grateful.

  12. Avatar

    I work with content and I’m always looking for courses to educate myself. Love the class! Thank you for sharing your knowledge!

  13. Avatar

    Thank you very much, Perry, for sharing your knowledge with us. I particularly enjoyed the section on nomenclature. It’s interesting how that part evolves into designated names and trade names, no mater the discipline in chemistry! Looking forward to more… 🙂

  14. Avatar
    Zahid mahmood

    Very interesting and informative lesson

  15. Avatar

    This is an amazing course. we really weren’t taught all these in college. Definitely makes it easier to understand what ingredients our personal products are made of. Thanks a lot

  16. Avatar
    Shannon Rea

    Thanks for the lesson! It was well put together!

  17. Avatar

    great waiting more in prepartion cosmetics specifically

  18. Avatar
    Michael Joyce

    Ticks all the boxes for me and in a non – complicated way helps us to understand the different group functions and INCI names of compounds, in order to comprehend the formulation process.

  19. Avatar
    Gagandeep Magoo

    It’s really very informative.As an cosmetics manufacturer I always want to learn more and this video is very much appreciated.

  20. Avatar

    I have PhD in Cosmetology, but I really enjoyed your lecture. Thank you!

  21. Avatar

    thans for sharing of this information

  22. Avatar

    thank u waiting more

  23. Avatar

    Very interesting! And a very good point about hair products! Thanks

  24. Avatar

    thank you for sharing your knowledge. what i like about this video is the information is not to deep at the same time its not to short.

  25. Avatar

    Oh Very helpful and revealing!
    I now know that hairs grow out as dead cells.
    Thank you so much Perry

  26. Avatar

    Many thanks Perry for sharing this. Corse 2 is very nice.

  27. Avatar

    Thank you for sharing knowledge. Interesting and helpful

  28. Avatar
    Henk Haverkamp

    Thanks Perry, very informative. Keep up the good work by teaching us more

  29. Avatar

    Thank you

    Good job

  30. Avatar
    Nora Osorio

    Great video. Here I just finished my organic classes with my mind very IUPAC and then come to learn that cosmetic scientists use the INCI….thanks for the tip on needing to learn and memorize those forms of nomenclature.

  31. Avatar

    Many thanks for these lecture

  32. Avatar

    Great info. Thank you. As an Esthetician, this series is helping me understand the products I use better.

  33. Avatar

    Thank you!

  34. Avatar
    Kathryn Mazierski

    Hi There.. I respectfully submit a correction to the presentation. Keratinoctyes are generated within the Stratum Basale layer of the epidermis, not the dermis. These cells proliferate and differentiate as they make their way to the surface of the epidermis (stratum corneum). Their mission is to establish the skin barrier. While corneoctyes do not contain a nucleus, they are not actually dead in the classic sense. They become a critical component of cellular signaling from the outside to the inside, in order to form a competent barrier, preventing TEWL and the ingress of harmful substances. This is why penetration of certain actives through the stratum corneum can be a challenge. Cheers.

    1. Avatar
      Perry Romanowski

      Thank you so much for the clarifications!

  35. Avatar

    Many thanks for sharing this information

  36. Avatar


    Thank you for this informative video. I specifically found the nomenclature portion to be very helpful.

  37. Avatar

    Got to know a lot
    Thanks perry

  38. Avatar

    It is very informative. Thank you for the video!

  39. Avatar
    Laura Garcia

    Hi Perry,
    I want to thank you for the amazing, informative videos you make, there are so much important stuff, which is not being taught at college and now we all have the opportunity to learn it through your videos. Thanks so much!!!

  40. Avatar

    Great job! What e-mail can we use to ask questions?

    1. Avatar
      Perry Romanowski

      Send something via the Contact Us page.

  41. Avatar
    syed saberi syed amirudin

    I have learned & understand better the cosmetic ingredients.
    The next challenge is to find the right & suitable ingredients

  42. Avatar

    Thank you for the presentation and the course Perry, I really do appreciate your effort in sharing your time and knowledge of the cosmetic industry.

  43. Avatar

    It’s been a long time since my last chemistry course, but your course makes it much more fun to pay attention to the material. I agree with the others who suggested including applied components in class. Linking it to something useful i.e. cosmetics–something we use every day–would keep more students awake in class. Great info. Thanks for sharing.

  44. Avatar

    Thank you for this video. A lot of insight into the Cosmetic Chemistry Lingo!

  45. Avatar

    I have enjoyed lesson 2 as well. Personally, I don’t have chemistry background, have been an aesthetician over 20yrs and thinking of retirement. Do you think I can learn fast enough to be able to formulate my own cosmetics for sale on the commercial market?

  46. Avatar

    Thanks for this informative video Perry. I particularly like the way the information is presented, very simple and straightforward.

  47. Avatar

    Lesson Two is empty [0:00 / 0:00]
    Why am I having so much trouble with these lessons?
    Please help!

    1. Avatar
      Perry Romanowski

      Try a different browser. Other people are able to see it.

  48. Avatar

    It is very informative. Thank you for the video!

  49. Avatar

    Thank you for the presentation Perry, I really do appreciate your effort in sharing your time and knowledge of the cosmetic industry.

  50. Avatar

    Hi Perry, thanks a lot for the video. And you are right; a lot of this is not cover in college. I have a question, I am having trouble with the whole ¨no silicon’s¨ in shampoo. You know with all the claims now and internet bloggers is hard to know what is what. So my question is: Are silicon’s that bad for hair?. And if they are, how can I make my shampoo experience better for my consumers? (specially in Shampoo 2 in 1).

    1. Avatar
      Perry Romanowski

      No, silicones are not bad for hair. They can build up but this is generally not a problem for most people.

  51. Avatar

    I’ve learnt many things that never found in books. Thanks!

  52. Avatar

    Thanks for the information it was very helpful. I’m ready for the next lesson, thanks again

  53. Avatar

    Hi Perry,

    Thanks for the video. It’s very helpful. I totally agree with you about what we study was not same as we working especially INCI name IUPAC name. 🙂

  54. Avatar

    Hi Perry, the lesson 2 is very helpful. Thanks very much. I appreciate it.

  55. Avatar
    Rachael Bempomaa Apenteng

    nice one there very informative,well packed.

  56. Avatar

    Thank you! Nice presentation, short but informative.

  57. Avatar
    Joyce Bonner

    Hi Perry,
    Could not view the vide as it did not come up, only had a black screen, same thing with the first video. I did read the transcript though and the information was informative. I am not a chemist and not in the field, I have been making beauty/hair products and I am so interested in gaining all the knowledge I can. I really enjoy the chemist corner although it is geared more for the professional chemist their are some trid bits I can take away, so thanks for all you do

  58. Avatar

    Thank you, very useful

  59. Avatar

    Absolutely fantastic and informative! Totally appreciate the information that you impart. Many thanks 🙂

  60. Avatar
    Rashmi Saxena Pal

    Being a pharmacy proffessional,I m aware of most of the terms,but the video is extremely helpful in quick revision of all these essentials.

  61. Avatar
    Olamide Olajide

    Thank you for the presentation. Like the first video, this one too is very informative. Looking forward to taking the course.

  62. Avatar
    Helene Tsangaris

    Hi Perry, I really enjoyed seeing your second video which has so many interesting facts to learn and will be looking forward to seeing the next one.

  63. Avatar
    Marile Hanson

    Great video as always. This is definitely a nose dive crash course. I personally was able to keep up because of my knowledge from esthetician school thankfully. I loved the structure of the course, made it easier to follow.

  64. Avatar

    The video was so amazing. Thanks a lot.

  65. Avatar

    A lesson is useful for me, thank you.

  66. Avatar

    Very interesting course! thank you

  67. Avatar

    loved it very informative.

  68. Avatar
    Faith Chong

    Thanks for the presentation. Easy to understand and very informative.

  69. Avatar
    Kim Pelletier

    Thank you! Very interesting and helpful presentation. Looking forward to the next segment!

  70. Avatar
    Musbahu shehu Abubakar

    Thank you very much with this wondeful clip.

  71. Avatar
    Valence M

    The video stopped playing at 11:58, and i don’t why? I can’t move on to the next lesson without knowing the remaining information contained in more or less 10 minutes of the lesson. Help me fix the glitch.

    1. Avatar
      Perry Romanowski

      That sounds like a computer problem. Did you try rebooting?

  72. Avatar

    Thank you perry, very interesting and informative video. Looking forward for the next classes

  73. Avatar

    Thank you so much Perry, I was making my own beauty product for long time and I was thinking to take it to the next level. One day, I am looking forward to take your online practical lesson. Thanks again.

  74. Avatar

    Thank you for this video. The INCI and IUPAC nomenclature comparing was really useful to me.

  75. Avatar

    Thank you very much for sharing your expertise in cosmetic chemistry.
    I like how you summarized the key purpose of most common raw materials used in making cosmetic products. It is very thoughtful of you to remind us all of importance not to go beyond the skin surface when manufacturing cosmetics……let that be the part of work and science for more skilled professionals, like doctors and chemist working in pharmaceutical industry. Looking forward video #3

  76. Avatar

    Readed!! thanks so much!!

  77. Avatar

    This is pretty good. What a good lesson.

  78. Avatar
    Rebecca Owens

    Another great video from Perry! I’m so glad I watched these videos, my path becomes clearer with each one!

  79. Avatar

    Thanks for these interesting courses. They help me having a better understanding on Cosmetics. If I would like to access to literature related to home made ORGANIC cosmetics, what would you recommend ?

    1. Avatar
      Perry Romanowski

      See our course on creating natural cosmetic products.

      1. Avatar

        Where can I find this course on natural cosmetic products?

  80. Avatar

    please help me ,, how to reduce viscosity of face wash and which chemical should i add to make it clear and transparent.???

    1. Avatar
      Perry Romanowski

      I would need more information about what is in your formula. I’d suggest you post the question in our forum.

  81. Avatar

    Thankyou perry for the very informative video….

  82. Avatar

    Thank you for a very usefull presentation

    1. Avatar

      Fantastic. This is interesting.

  83. Avatar

    Wonderful information in series I have question how to mix glycerine with essential oils

    1. Avatar
      Perry Romanowski

      You can post questions in our forum.

  84. Avatar

    Hi Sir
    Thanks for the very informative session . Do you also do any car shine formulations?
    Top stuff

    1. Avatar
      Perry Romanowski

      No, I only do cosmetic products.

  85. Avatar

    What I loved about this session is that it is done in simple terms with no information overload. Really well structured, thank you, Perry.

  86. Avatar

    Very interesting and full of brief details for novice in this field.really excited for next lesson.Thanks for sharing.

  87. Avatar

    I found this video much more Interesting than first one. Look forward to next one.

  88. Avatar

    Hi Perry, the information is really helpful and interesting. Iam into field of soaps & Cosmetics and would like to get more information on soaps as well specially syndet bar soap.

  89. Avatar

    Thank you Perry. This is useful video for me.

  90. Avatar

    Once again a concise yet informative video to help those with a strong desire to move into cosmetic formulation . I’m looking forward to the rest of this mini series

  91. Avatar

    This is very true, college does not prepare you to be a formulator. A lot is on the job learning

  92. Avatar

    Another excellent video. Very informative and relevant.

  93. Avatar

    Great video!

  94. Avatar

    Thank you so much
    It’s very helpful

  95. Avatar

    Oh you cosmetic chemists not following the IUPAC rules and making everyone’s lives more difficult. Also, each time silicones are mentioned, I think about protecting group chemistry. But from now on, I’ll look at the ingredients in my primers more carefully. Keep up the good work!

  96. Avatar
    Alex Ganczar

    Amazing. Love the information. The travelling part too.
    Walks you through important stages
    Alex Ganczar

  97. Avatar
    Alex Ganczar

    Amazing. Each video is very knowledgeable/ coaching is real good.
    Alex Ganczar

  98. Avatar
    Robin Pennell

    The information was well presented and easy to understand. I am not a beginner. It would have been great to have this introduction years ago. Robin 🙂

  99. Avatar

    Hi Perry, Thank you for video. I am not scientist so difficult to understand science terms. I am interested to start make up production. Is that so what kind of scientist I need to hire especially in 2 way powders, make up, emulsion, make up removal, H2O facial water …Could you pls. advice? Note I live in Myanmar so nearest will be Thailand and if I do this business, I will hire Thai scientist. Thank you and look forward to you.

    1. Avatar
      Perry Romanowski

      Hello Sally – You need to find a contract manufacturer to make your product. Or you can look for a cosmetic formulation consultant. Check the IFSCC website for chemists in your area.

  100. Avatar
    Ijeoma odoko

    Thank you so much for your videos. They have really been insightful.

  101. Avatar
    Suzanne Van Coller

    Great information and can relate.

  102. Avatar

    thanks for information. it is very useful.

  103. Avatar
    haider ali

    Thank you very much sir Perry.. thank you for sharing your useful and informative knowledge…

  104. Avatar
    Oc Dat

    Hello to all
    Has anyone taken the online course? The complete course? Please share with me. I am curious about this course. Thank you so much!

  105. Avatar

    These lessons have been great! Really interesting and laid out in a way that is totally comprehensible. I cannot wait to get to the next video. Thank you so much for the lessons!

  106. Avatar

    Thank you for making this information available, especially the “Naming Cosmetic Compounds” table, but also information regarding skin and hair; very interesting.

  107. Avatar

    very informative

  108. Avatar

    Thank you so much for such a great overview. I really appreciate what you’re doing!!! Please Keep up the excellwent work.

  109. Avatar

    GREAT!! I really found these courses so helpful and interesting. Great job Perry

  110. Avatar
    Louise Mynhardt

    Thanks Perry, I have learnt so much from all your courses, please don’t stop.
    I have a question: what is the difference between Empicol esb3 (sles28%) and Texapon NSO. I hope you can help me, thanks Louise

    1. Avatar
      Perry Romanowski

      It’s just a difference in the amount of ethoxylation in the molecules. So Texapon has an average of 2 moles of EO per mole of lauryl sulfate. But when it comes down to it, you shouldn’t notice much difference in formulation.

  111. Avatar
    tu kieu

    Great information, Thanks a lot.

  112. Avatar

    Thank you for focusing on practical, applicable knowledge for formulators.

  113. Avatar
    Bayuning Kaeka Putra

    Nice lesson, Thank you Perry

  114. Avatar

    Was explicit.. Thank you

  115. Avatar

    A very good overview! Thanks for sharing Perry

  116. Avatar

    Lesson 2 was great to watch, especially for those of us (me), who don’t have a very strong much chemistry background.
    Thank you.

  117. Avatar
    JY Wu

    Useful and easy to understand for layman. Thank you.

  118. Avatar
    Manaza Mitha

    This was a very informative video that you put together for us. Thank you for helping me learn so much and enabling my learning in the industry. I look forward to future videos.
    Thank you Perry!

  119. Avatar
    Dr Mrs Rekha Sheth

    Excellent lesson – very lucid ans succinct even for a dermatologist like me! (from Mumbai, India)

  120. Avatar

    I really enjoy the video and learn a lot from you. I am trying to learn cosmetic chemical since I learn very little in the university.

  121. Avatar

    Thanks alot for the useful video.

  122. Avatar

    Thank you so much for this useful information!

  123. Avatar
    Wilson Anomah Opoku

    Nice teaching and God bless you.
    Please l need your help here, l made a detergent with the following ingredients:
    Hypochlorite – 1kg
    Sodium carbonate – 1kg
    Sodium hydroxide – 1kg.
    34lter bucket 2
    But its not thick
    which ingredient can i add to make it thick?
    Thank you.

    1. Avatar
      Perry Romanowski

      You need to add a thickener like Hydroxyethylcellulose

  124. Avatar

    Thank you for sharing these cosmetic knowledge. It’s very useful 🙂

  125. Avatar
    Choma Matale

    Hi again,

    Lesson 2 is fine especially for those who don’t have very little knowdge of chemistry. Thanks for making this information available.

  126. Avatar
    chinwe Agomoh

    This is awesome , thanks perry .

  127. Avatar

    Whaooo ! this is great and awesome. Thanks for the information really educative.

  128. Avatar

    Hi Perry,
    Thanks for the useful informations. You have really helped me understand so many confusing terminologies in the cosmetic industry, but i,ll still love to learn more.
    keep the lectures coming! Thanks .

  129. Avatar

    Hey Perry,

    Thanks for posting such useful info , as a chemistry undergrad you continually remind me why I chose this field despite all the negative hype.

    Keep it up !!

  130. Avatar

    I studied most of the mentioned topics in my degree course that was specific for pharmaceutical products. However, there is always something new to learn: I didn’t know about the INCI dictionary!

  131. Avatar

    Interesting. Somethings I already knew from my biology & biochemistry classes. Helped pull them together.

  132. Avatar

    Thank you for this informative video. It is really very interesting!

  133. Avatar

    It is really helpful.

  134. Avatar

    Very informative, great lesson.

  135. Avatar
    Paige DeGarmo

    Super interesting video, especially the nomenclature part! I knew about a few of the ingredients from a food chemistry class that I took but I was really glad to learn about their application in cosmetics

    1. Avatar

      Thanks perry, its very interesting. I love it but I could not open the 1st lesson.

  136. Avatar

    Thank for the information! I haven’t found much information while I’m in school, so this is very helpful.

  137. Avatar
    Ching-Chung Tsai

    Very good lesson ! It help me to understand the ingredients name in cosmetic label.
    However please let me know where can I buy the dictionary of INCI and IUPAC.

  138. Avatar

    Great lesson. Very helpful.

    Thanks for the video.

  139. Avatar

    Very informative, thank you so much for sharing your knowledge and taking the time.

  140. Avatar
    Emily Chang

    Very informative and interesting. Thanks your sharing, Perry. It is very interesting. I look forward to receiving your next video.

  141. Avatar

    Fantastic lesson

    Thanks Perry

  142. Avatar

    Great info. I can’t wait for the next video!

  143. Avatar

    dear sir

    thanks for this interactive session am looking forward for your next tutorials i want to make a lotion that is less greasy and of 80% water content.

  144. Avatar

    Thank you very much perry

  145. Avatar

    Wow this is really intestine and informative thanks so much for this great study.

  146. Avatar

    Good think you

  147. Avatar

    I am really enjoying the lessons, they are full of useful information and explained in very accessible language.

  148. Avatar
    Colin Ogle

    Useful background info that will no doubt be helpful as we go to the next lesson on beginning to formulate.

  149. Avatar

    Thanks for the video. It is very informative and interesting.
    Best regards

  150. Avatar

    very informative

  151. Avatar
    Mustafa Hamido

    Waiting more information in next lessons

  152. Avatar

    Thanks for to impact this useful knowledge

  153. Avatar

    The lesson is very clearly informative. Thank you so much.

  154. Avatar

    The second presentation was super informative. The list of the chemical nomenclature was by far super helpful. I will really start looking into them. Thanks!

  155. Avatar

    This video is fantastic. Lots of essential information delivered in easy to understand language. Thank you!

  156. Avatar
    Amit Sharma

    Sir, where to buy polyglucose lactylate and gsb preservative in India. Please suggest me website names

    1. Avatar
      Perry Romanowski

      I’m sorry I do not know this information. I would suggest you do a Google search or check

  157. Avatar

    a useful video. i am practicing make cosmetics

  158. Avatar

    Very informative

  159. Avatar

    very informative and helpful, thank you, appreciate all the knowledge your sharing with us peeps

  160. Avatar
    Irene Wong

    Quite useful.

  161. Avatar

    Thanks Perry I nice video.

  162. Avatar



  163. Avatar

    Such a wonderful sharing of knowledge. Thank you and i look forward to more cosmetics as well as household (i hope you’ll also discuss) general cleaning concern.


  164. Avatar

    thank you very much! this is very helpful for cosmetic production start-up companies as ours. kudos for the project!

  165. Avatar

    Thank you a lot. This programme is very useful…

  166. Avatar

    Interesting course well done

  167. Avatar

    Thank you very much perry

  168. Avatar

    I really enjoyed this very informative lecture.

  169. Avatar

    Great information as usual. I like the fact that these videos are long enough to keep my attention, but short enough for me to process the information and look forward for more! Excellent.

  170. Avatar
    Lydia Naadu Tawiah

    Thank you for the tips,i watched the first and second video it was great, i can,t wait to join your online courses,am interested in all your courses,
    from Lydia

  171. Avatar

    I love the video but it keeps on cutting off after about 7 minutes same with lesson 1
    Can you perhaps send another link. Thanks. Much appreciated.

    1. Avatar
      Perry Romanowski

      Sorry Kathy – I don’t know what the issue is. It is working for me when I test it.

  172. Avatar

    Thank you so much, I’ve learned a lot and now want to learn more! Please keep on teaching!

  173. Avatar
    nasir shaikh

    thnx for this valuable information n lessons

  174. Avatar

    I am an Account Executive in the cosmetic industry. This series of mini courses have been very informative. It has refreshed me to stay on top of the cutting edge of technology in the cosmetic industry.
    Thank you for sharing such valuable knowledge.

    1. Avatar
      Perry Romanowski

      Thanks for the kind words!

  175. Avatar

    Hi, Tnx a lot for this video, but unfortunately is interrupted in 2:47 suddenly, I try it severally but every time is stopped in 2:47, How should I do? 🙁

    1. Avatar
      Perry Romanowski

      Hello – Sorry Negar, I’m running the video right now and it works. I would suggest rebooting your system or try using a different web browser. I use Chrome and it works.

  176. Avatar

    wow, why was it never explained like this. i can really recommend his course. it is simple and direct. no unnecessary
    i am not a chemist, i have not chemistry background and i understood this.

  177. Avatar

    Good information. Thank u sir.

  178. Avatar

    Thank you Perry for the very informative course

  179. Avatar
    Lau C.S.

    Great insight

  180. Avatar

    Thanks Perry, this was of great help looking forward for your next video.

  181. Avatar
    DeAnn Jackson

    Thank you Perry for the very informative course! I will have to study that list, it will help me become a better esthetician! Thank you again!

  182. Avatar

    Thank you! This is great!

  183. Avatar

    I’m an Esthetician and it was nice to get a refresher of what I learned in school a few years ago.

  184. Avatar

    GREAT Presentatation.very insightful

  185. Avatar

    very interesting, i really like it. thanks

  186. Avatar

    Very useful. Clearly presented. If hair is dead how come it stays without decomposing for many years?

  187. Avatar
    zohre khosravi

    thanks a lot,

  188. Avatar
    Maria Vargas

    Very helpful, THanks for sharing

  189. Avatar

    Simple, easy to follow and very structured. Thank you for the great lesson.

  190. Avatar

    Thanks for the helpful information.

  191. Avatar
    Daniel Segal

    Just a wonderful and effective lesson,

    You make Chemistry simple and easy for anyone to learn!

    Great job, and keep up the vids coming!

  192. Avatar

    Very enjoyabe and easy to listen to and learn

  193. Avatar

    Thanks for the informative video! I’m new to cosmetic science and enjoyed watching your video. The script and slides are helpful as I needed to go back to read and reference the notes. Thanks again!

  194. Avatar
    catherine robinson

    I miss the first video but I love the second videothanks a lot for allowing me to learn science chemistry scienceCosmetics

  195. Avatar

    Thank u very much Perry it’s very useful lesson for me and I’m waiting for more lessons 🙂

  196. Avatar
    Noel Peter Tan

    Definitely Organic Chemistry is a key to understanding cosmetic chemistry. Thanks a lot Perry.


  197. Avatar

    Thanks a lot perry!
    I love the hydrophilic heads 😉

  198. Avatar
    Julie Berry

    I enjoy re-learning some of these things that I remember from College chemistry. I started with soap, and have moved onto lotions, creams, and anything bath & body. Understanding all the various ingredients and combining them is amazing.
    Looking forward to seeing what you show us next.
    Thank you

  199. Avatar

    Thanks very much .Its really interesting

  200. Avatar
    Nahid MM


    many thanks!

  201. Avatar

    very interesting video, i have learned a lot of information that I can translate to formulating my own products.

    Thanks for sharing your knowledge


  202. Avatar

    Thank you vert much

  203. Avatar

    another informative session of understandable information, I shall be waiting for no 3 many thanks

  204. Avatar

    Hello Perry,
    I really appreciate your classes. I am a former cosmetologist and I’ve been makeing my own skin care products for years now. Recently I decided I wanted to share my products with others and start selling it. Just didn’t know where to start. I’m so glad I found your website. It’s is absolutely wonderful. And again, I can’t wait for the lesson # 3. Thank you so much for all your work.


  205. Avatar

    Thanks Perry for your insightful video, very much appreciated as I am not a chemist but interested in making my own hair products.

  206. Avatar

    Thankyou x3, i’m not a chemist…yet! but your methods of teaching go beyond, really appreciated your input on the hair segment, as usual keep up the good work!!

  207. Avatar
    Leonard John

    Hi Perry,
    I found the lesson very informative and worthwhile, keep it up. however, I could not watch the videos for both lesson 1&2, it says ‘ File has invalid structure null’ please what do I do to watch the presentations?
    Thanks a lot

    1. Avatar
      Perry Romanowski

      Thanks Leonard. I would suggest trying a different browser. I’ve tested it and it works on my system.

  208. Avatar

    I really liked this episode because I like chemistry. Took me back to my olden days in the classroom :). Good explanations of ingredients one uses when making cosmetics. Slides and illustrations were good.

  209. Avatar

    Great, very informative. Learned a lot of things about cosmetic science. Hope to hear more lessons about the cosmetic industry from you. Thanks

  210. Avatar

    We’ll put together and informative, thank you!

  211. Avatar

    Nice overview on the raw materials. It would be very helpful if you make a video on types of surfactants.

    1. Avatar
      Perry Romanowski

      I think we’ve done this on the blog. Do a search for surfactants.

  212. Avatar

    Very interesting. I’ll keep this information in mind. Thanks!

  213. Avatar

    Very helpful! thanks so much for this information!

  214. Avatar
    greg barton

    thanks for the information.

  215. Avatar

    This is a great presentation. Thanks a lot. Are you going to mention about color cosmetics as well?

  216. Avatar

    Good introduction to basic concepts. …can’t wait for more

  217. Avatar

    Great video! You explain things wonderfully and make it so easy to understand. You have me interested in chemistry and now want to explore and learn more. Thank You!

  218. Avatar
    Irina Tudor

    Love the part about the fatty acids 😀 Great job, Perry, thank you!

  219. Avatar

    This is a great introduction, and I like that it is simple enough for most with basic chemistry knowledge to understand. I think it is wonderful what you do to help educate others. Looking forward to the course.

  220. Avatar

    Great summary!

  221. Avatar

    thank you for offering (free of charge) your mini lessons on Cosmetic Science! I have learned quite a bit of very valuable information as I begin the research phase of creating a line of branded cosmetics for our planned salons, which are about 2 years from launching! We want to learn as much as we can afford to pay for so that we choose the right company, ingredients, and formulations for our line! We are very excited and grateful to have found you and your website/blog…I can’t thank you enough for your graciousness in sharing your knowledge and expertise!

  222. Avatar

    thanks alot, you help me alot.

  223. Avatar

    Thank you so much! I don’t have a scientific background but do make cosmetics, so this has been very helpful!

  224. Avatar
    Chelsea Wreden

    Good info! ready for more!

  225. Avatar
    Anjali Gopala

    Hi ,
    I am new in cosmetic formulations., so it is really very useful for me .

    Thank You

  226. Avatar

    Excellent Video. I have recently started a graduate role as a cosmetic chemist and I have to say that although I have done a Masters in Chemical Engineering, I am trying to grasp how to formulate cosmetic products. Its a lot more challenging than it seems especially because the environment is very fast paced and speed to market is very important with very little room for error. Anyhow, I am looking forward to your next video. I wish that you can give a more in-depth analysis of the various topics covered in this video. Do you know of any sources that I can go to for references? Thank you and Keep up the good work! The video was definitely great at clarifying key concepts in the cosmetic industry.

  227. Avatar

    Very informative. Clear concise and actually interesting. Thanks Perry

  228. Avatar

    This video was so informative, thank you Perry

  229. Avatar

    I should have made notes

  230. Avatar

    Focused and informative video on cosmetic chemistry principles.

    I enjoyed watching it!

  231. Avatar

    I thought studying chemistry is s waste of time. I think I now have a focus. U made it so simple to understand. Thank you so much.

  232. Avatar

    Thanks A Lot ….. Its very useful information

  233. Avatar
    dean grillo

    great basic info that is always a big help. i appreciate your efforts in teaching. great stuff

  234. Avatar

    Very informative, thank you for this.

  235. Avatar

    Great lesson that provide a better understanding about the substances used in cosmetics. Thank you.

  236. Avatar

    I found this video very informative. Can’t wait to view the next one

  237. Avatar

    lesson 2 was great but where could I find lesson 1?!
    thank you

    1. Avatar
      Perry Romanowski

      You should have received an email that tells you how to get lesson 1

  238. Avatar
    Adnan Güzelsahin

    Very good avowed. Thank you Perry.

  239. Avatar
    Adnan Güzelsahin

    Very good and nice avowed. Thanky you Perry.

  240. Avatar

    Very good presentation, thank you so much

  241. Avatar

    Your video helps a lot! I learn that I didn’t misunderstand what this course is about.
    But, do u mind to share more on the career studying this course? And where can I get a jobs after graduating from this course?

    1. Avatar
      Perry Romanowski

      I would suggest you look at our career articles (do a search for ‘career’ in the search bar). As far as where to get a job, I’d suggest you go through the SCC websites and look for listings.

  242. Avatar
    Bridgewell Nkosi

    How do I download the videos?

    1. Avatar
      Perry Romanowski

      These aren’t set up to download.

  243. Avatar

    It is very interesting and reinforced my knowlegde in cosmetic chemistry.

  244. Avatar

    This is interesting particularly the naming but there is no INCIDENT name for carbon 19 none for fatty acid and alcohol. Is the omission intentional or we are to find out what they might be? I like the way you are trying to wet our appetite. I did chemistry in my college study you are right some of this topics are not mentioned.
    Thanks you Perry.

    1. Avatar
      Perry Romanowski

      C19 is not found in nature and is not really used in cosmetics so no one has bothered coming up with an INCI name. Probably would just use the IUPAC name.

  245. Avatar
    Mayra Gonzalez


  246. Avatar

    I started the class but I’m not sure if I’m doing the lesson right

    1. Avatar
      Perry Romanowski

      Are you seeing the lessons?

  247. Avatar


  248. Avatar

    Another informative and refreshing lesson. Well done Perry.

  249. Avatar

    It is very informative. keep it up. I really appreciate your efforts for equipping the chemists for an important industry in very interesting way

  250. Avatar

    It is very interesting and reinforced my knowlegde in cosmetic chemistry.

  251. Avatar

    Very good presentation…, thank you, Perry!

    1. Avatar
      Perry Romanowski


  252. Avatar

    Very informative.

  253. Avatar
    Marveline Oconnor

    Extremely informative .
    Thank you

    1. Avatar

      you are doing great keep up man.

      1. Avatar
        Perry Romanowski


  254. Avatar
    maitree kanjilal

    Thanks a lot. Where is part 1?

  255. Avatar

    Thank you very much perry

  256. Avatar
    Amanda de Nobrega

    Thank you very much for the lesson! I learn a lot from it, now will be easier for me to understand the practical.

  257. Avatar

    Thank you Perr for your generosity. This course and cross reference chart are very helpful.

  258. Avatar

    Very informative – I’ve certainly learned a lot! Thank you for you time and efforts. Appreciated

  259. Avatar

    Impressive information well presented, and up to date tips. Thanks for an excellent presentation.

  260. Avatar

    Thanks, good job again.

  261. Avatar

    Thank you so much for providing this stellar service.

  262. Avatar

    Another great course.

  263. Avatar

    Excellent information, very good description of ingredients. Thank you.

  264. Avatar

    Many thanks for sharing, really informative.

  265. Avatar

    Thanks for the info. I’m not a chemistry student, just a regular person! LOL
    Looks like I am in need of a cosmetic formulator in the Portland, Oregon area. Any suggestions?

    Thanks again

  266. Avatar
    Than Htaik

    Very nice, educational, helpful to beginners, thank you

  267. Avatar

    a really nice introduction in cosmetic chemistry!!!good job indeed

  268. Avatar

    This is a really good learning for me in presentation way, i will be waiting for the next lesson to know more…

  269. Avatar

    Thanks for the mini revision and intro into the raw materials essential to cosmetic science. It is very practical, and specific to the industry. A review of my college notes is definitely necessary to get a reminder of the terms. And thanks for the power point slides too!

  270. Avatar

    Hi Perry, i cannot access and save this particular lesson 2, It’§ showing page not found, can it be corrected?. i really need this information. Thanks

    1. Avatar
      Perry Romanowski

      I fixed the link. try it now

  271. Avatar
    Maria Miller

    Thank you soooo much! I am new to the industry and the information you presented in the video are the things that needed to know. Thanks for pointing out the things that i need to commit to memory also. very helpful.


  272. Avatar

    Around 1:54 you state that the surfactant molecule has a hydrophobic head but the screen shows hydrophilic head so I think that was what you meant to say. Otherwise, great lesson!

    1. Avatar
      Perry Romanowski

      Thanks for the edit!

  273. Avatar

    Great mini course. I am a chemist and your lesson directs me in to which topics do I have to give more emphasis in order to be a cosmetic chemist. I am looking forward for lesson 3

  274. Avatar

    Many thanks for all this information. Very useful. I love this website, really. It helps me a lot.

  275. Avatar
    Ramachandra K S

    Hi Perry,

    Excellent treatment of the subject with nice visual feast! Keep it up.

  276. Avatar

    Thanks again Perry. Great info into the vast vast world of cosmetic chemistry. Got my pen ready for the next 2!

  277. Avatar

    Good Perry. You have given me good source of information. I have learnt well.

  278. Avatar

    Hi Perry, thank you for this excellent overview of important cosmetic science topics. Very well explained.

  279. Avatar
    Solange Peretti

    If I watched your videos before start to work developing products, I probably didn’t suffered to know this things… anyway, now I can tell you , this is a good way to let , students in college that intend to follow a cosmetic career, know and feel a little bit more familiar with the ingredients.

  280. Avatar

    This is a very informative minicourse. thank you.

  281. Avatar

    I think now I can better understand the list of compounds that appear in cosmetic labels.

  282. Avatar

    Thanks. It’s really a great information .

    I am very excited to see Lesson No ,3

  283. Avatar

    I wonder what the target group is, that you’re aiming at.
    As far as I know, the major part of the presentation should be basic knowledge for those who have chosen science in (European) highschool.
    But it may be a good refreshment course and the nomenclature overview is a handy flashcard.

    1. Avatar
      Perry Romanowski

      Most people coming out of college do not get exposed to this information about the primary ingredients in cosmetic products. You would be surprised at how unprepared people can be.

  284. Avatar
    David Small

    Very clear and precise introduction to cosmetic science, any plans for a more advanced seminar?

    1. Avatar
      Perry Romanowski

      You can get that in our training program.

  285. Avatar
    Eng. Nabil Mijahed

    Tghank you for the free informations
    Realy you are professional in this feild
    Appreciate highly your lesson 2
    Best regards
    Nabil Mijahed

  286. Avatar

    You are highly appreciated for the useful info. More grease to your elbow

  287. Avatar

    Thanks for the free information. This website is full of helpful resources.

  288. Avatar

    Hi Perry, It was a good information for me. I am looking forward to part 3. Anyway do you have any fixed formula for cosmetic (skin care, hair care, lotion etc) for testing ?

    1. Avatar
      Perry Romanowski

      Do a search on our website for Free Cosmetic formulas

      1. Avatar

        Thank you…!!

  289. Avatar

    Thank You Perry for this insightful information. I’ve learned a lot from this lesson just as much from lesson one. You are a great tutor. Please keep it going.

  290. Avatar

    Thanks for providing information for free

  291. Avatar

    Dear perry
    thankyou very much for the info.Its really insightful

  292. Avatar

    Thanks alot! The bit about the nomenclature was very informative. Now I see the link. Thanks again Perry!

  293. Avatar
    jones appiah

    Hello perry,
    thanks for this brilliant pieces of information. These are not taught in training courses.

    1. Avatar
      Perry Romanowski

      Your welcome. I tried to make these unique and useful.

  294. Avatar

    Great concise information. Thanks. Looking forward to no 3!

  295. Avatar

    Thanks for this great presentation, now you entice me to learn more about cosmetic science

  296. Avatar
    Mary Udoh

    Thanks Perry, I”m finding this so interesting.

  297. Avatar

    it was useful,but I guess I need more regarding the nomenclature part,I guess I’m going to buy the INCI 🙂 .

  298. Avatar

    Your lesson 2 has been very informative, Big thanks for sharing.

  299. Avatar

    Hi Perry,

    Thank you for the information that you provide. It is very useful and easy to understand especially for myself as I am a beginner and have lots to still learn. I am looking forward to course 3. Once again thank you!

  300. Avatar

    This is a really good lesson

  301. Avatar

    Wow, that was really interesting. I miss my chemistry class! It’s been too long. 🙂

  302. Avatar

    Thanks Perry, very informative & well-explained.

  303. Avatar

    this kind of vedio is really what i want because i am a newer

  304. Avatar

    It is a good lesson, easy understand.

  305. Avatar

    Very interesting!!Specially when you talk about the INCI names!Thank you very much

  306. Avatar

    Hi Perry!
    Great information in an easy to understand format. Keep up the great work!

  307. Avatar

    Hi Perry,

    Another great summary, again with very useful information. Thanks for sharing your expertise.
    I am looking forward to seeing the next lesson!

  308. Avatar
    R M Hegde

    Thank you, very simple to understand.
    Sir, i am developing a simple face wash with SLES, Carbomer, Glycerine , PG, Aloevera,MPS.PPS and TEA as neutraliser. pH- 7. 0 to 8.0
    Iam facing the problem that when neutralized the gel, excess air bubbles will be trapped in side . Pl. suggest any changes or method or any equipment to remove the excess air bubbles from the gel. Pl. suggest which is better for for face gel- SLES or SLS

    With regards and thanks,
    R M Hegde

  309. Avatar

    Thank you for this information Mr. Perry, but I have wondered if allowed:
    1 – Is it possible to get a file documenting this information with percentages allowed for each material used in combination?
    2 – Can I squint chemically sodium silicate to (a) the simplest possible way so as not to provide this silicon in my country now?

  310. Avatar
    caleb kim

    great overview,thanks

  311. Avatar

    Hello Perry,
    Ten stars for you Perry, great summary,very useful info.Thanks again for sharing your expertise.
    I am looking forward to the next lesson.

  312. Avatar

    Hello sir!
    your this information is very useful…
    u deliver the lecture in very effective way and its easy to understand everything..thanks

  313. Avatar

    wow I was really surprised to learn that the IUPAC format of nomenclature is not used in cosmetic chemistry, very insightful video.

  314. Avatar
    Sheng-Sung Yu

    I truly learned from the lesson because there are many aspects in cosmetic science that I didn’t know. I have heard those terms in college but I have never learned the application to cosmetic products.

  315. Avatar
    R M Hegde

    I really appreciate you for your effort to share your knowledge of cosmetics through simple way

  316. Avatar

    I think I can say I agree with all of the above comments

  317. Avatar

    Excellent….keep it up….

  318. Avatar

    Thank you Perry for these free mini courses. A lot of information gathered together in good order. A very usefull tool for the beginners, since, as you said, very little information about these molecules is given in the University. When I started working in the cosmetic industry a few years ago, I found it very difficult to understand what to do with all these raw materials!! I am also very glad to have stumbled upon your website and I will keep following your work and your articles. Unfortunately, not many people are so generous to share their knowledge.

  319. Avatar

    very useful source! thanks

  320. Avatar

    great overview

  321. Avatar
    Deeqa ali

    This was very insightful

  322. Avatar

    your coarse is very useful & help me more,
    Although my knowledge in cosmetic is somewhat is good,
    but i learned more from your minicoarses

  323. Avatar

    Hi Perry,

    your course is very interesting, thank you very much

  324. Avatar

    I second you Mo.

  325. Avatar

    Hi, Perry
    I believe those they want to become cosmetic chemist they should follow these lectures seriously and in mean time these well arranged presentation are a short review for those they already know the basic principle of cosmetic chemistry.

  326. Avatar

    Just finished with video two and say three thumbs up Perry. Great presentation.

  327. Avatar
    Maria Dela Cruz

    This is a great course for people who would like to be a formulator in the industry. Thanks for sending us an informative course like this.


  328. Avatar

    Nice one.
    Would like to see more on INCI name.

  329. Avatar

    Dear Perry

    Thanks for the chemistry lesson which reminds me of old school days when I had my chemistry classes. Although I do not have intention to become a chemist, I find it extremely good knowledge to get a foothold of the industry. I am very glad to have stumbled upon your website.

    1. Avatar
      Perry Romanowski

      Thanks for the kind words.

  330. Avatar

    it is very useful information given,


  331. Avatar

    Hi Perry

    That was totally great! Thanks, btw, for making slides available as a PDF. I’m more of an IUPAC kind of girl with oil lab experience and a bunch of books buried in a sea can. So that list is now saved. There is a lot to know about chemistry, and you can’t possibly remember it all- well I can’t! You get familiar with the things you work with every day and start forgetting the stuff you don’t use so thanks for that. I see what I need to learn and also what I need to review or re-learn, as the case may be. I would recommend to those who can’t take the paid course or who have no background but possess a keen interest to pick up a copy of “Milady’s Standard Textbook of Cosmetology” or a similar beauty school textbook. It discusses everything you did but in greater detail. I still have mine from hair school and I intend to review it. Thanks again!

  332. Avatar
    Kingsley Kesiie

    Listening to this 2nd lesson is really peaking my interest in this cosmetic industry. All I have is high school chemistry but following you is tickling me well well. I plan to get involved in the antiperspirant deodorant industry as an enterpreneur. Hopefully, I will make friends with a formulator at this forum who can be of assistance, even if I cannot do things all by myself. What a great flair for impartation of knowledge!

    1. Avatar
      Perry Romanowski

      Thanks for the kind words!

  333. Avatar

    Great presentation! It was thorough and very easy to understand. I love your presentations and reports. I learn a lot and it’s obvious that you enjoy teaching and you have a knack for it. However, in the beginning you said that the head of a surfactant molecule is “hydrophobic” instead of “hydrophilic”. Keep up the good work and I can’t wait for the third presentation!!! Thanks for putting these together!

  334. Avatar

    I really enjoyed Lesson 2. Just as lesson 1, your lesson plans are well thought out making the transference of knowledge easy. Your delivery of the message that there is a lot more involved in formulating products than most people realize is not intimidating, but very educational. I am looking forward to Lesson 3. I purchased your book, Beginning Cosmetic Chemistry and have started reading it. I must admit, it is difficult not to jump around and read specific chapters that peak my interest. It really is an awesome book. My formulas are based on natural ingredients and I am looking forward to taking your Natural Formula Course. Of course, I am using preservatives in my formulas. Hope you have a nice weekend.

  335. Avatar
    Linda Crenshaw

    I would like to know how I can get a chemist to help me with my idea’s. Or at least point me in the right direction. I took the lessen but I am not interest in a job just how to and knowledge of which I greatfully received. Can you tell help me please?

    1. Avatar

      Hello Linda,

      I would post your request in our cosmetic science forum. There are chemists there who may be able to help you.

      Perry, 44

  336. Avatar

    This gorgeous Thank you very much and I hope fruitful cooperation

  337. Avatar

    My 2nd thanks and appreciation to you for the 2nd lesson. Its a great contribution to the phrase that knowledge does decrease when given, it increases. Now I am very keenly looking forward to Lesson-3 of this course.

  338. Avatar
    Linda Crenshaw

    I learn a lot about. Hair question, the healthy hair you explan is underneath the epidermis and not seen? Why when it comes out of the head it is consider dead cells when it beautiful and look healthy?, organic mixtures question: do all the entire list under the organic is used instead of chemical for product such as hand lotion etc? This is so interesting.

    1. Avatar

      Hair looks beautiful in the same way that a silk scarf or a tailored suit looks beautiful. Silk fibers and cotton fibers are not alive, neither are hair fibers.

  339. Avatar

    Thank you so much for all the information that you share with the rest of us. J am looking forward to part 3.
    One question, if you have time to answer it;
    I thought that the element building up silicone was Silisium. Is that wrong?
    Again; thank you for all your information


    1. Avatar

      I’m not familiar with the material Silisium. It is not part of the cosmetics industry.

      1. Avatar

        Well, I think Anita misspelled the word here. Silicium is the latin name for Silicon. Accordingly, to say Silicium is building up silicone will be as correct as saying that so does silicon.
        Both of you are right. 🙂

        PS. The course is great for begginers. I’ve learned all of this at University.

  340. Avatar

    I got a lot of useful information and an overview about cosmetic chemistry. Thank you!

  341. Avatar


    thank you very much, it was a great presentation, I really enjoyed it. I am an undergraduate chemistry student and I am interested in nanotechnology and cosmetics. I´ve heard about nanocosmetics and I was wondering whether there was some course, etc. I could take to learn more about it.

    Keep up the good work!!!!

    Best wishes

    1. Avatar

      Thanks Lorena. I’m not aware of any course currently that focuses only on nanocosmetics. What did you want to know?

  342. Avatar


  343. Avatar

    Thanks! I learned a lot!

  344. Avatar

    Thank you so much. It was very informative and your explanations are easy to follow making learning great.

  345. Avatar
    zayd thabit

    thankyou its very useful.

  346. Avatar

    I meant that there is no need to put panthenol or oils to hair because they won’t make it healthier or treat it or make shiner , so the usage for all hair products is just to clean the hair !

  347. Avatar

    when I found this site from the first time I knew that I am in the right place. thanks a lot. but I have a question, if the hair is a dead tissue that is mean that all hair products won’t be useful and there is no need for them especially that you can use a hair mask from a big company to treat hair problems like breakage , dullness, split ends but it didn’t make anything at all. and all stuff that used in shampoo like panthenol, herbal infusions or extracts & oils won’t repair any hair problems. is this true ?


    1. Avatar

      Well, products for hair are useful because even though hair is dead tissue, it still can get dirty and your body creates oil that gets absorbed onto the hair. But when companies say things are put in hair to help the “health” they are exaggerating. Think of hair like your shoelaces or clothes. You wash them but you can’t make them more healthy.

  348. Avatar

    Excellent chapter two thank you Perry!!

  349. Avatar

    Nice and simple way of presentation
    Thank you Perry.

  350. Avatar

    i enjoy it!it was very helpful!!!thank you!!!!

  351. Avatar


  352. Avatar

    Thank you. Very informative. As an Aesthetician, it is always helpful to have a deeper understanding of the chemicals that I am using and their applied benefits.

  353. Avatar

    Very informative and clear. Thank you.

  354. Avatar

    Very helpful. Thank you!

  355. Avatar

    It’s a very general introduction but I must admit I did learn some new things and it refreshed my memory on things I did know.
    Looking forward for a next lesson.
    Thanks a lot.

  356. Avatar
    Bedour M

    Thank you so much, that was a simple and clear lesson and very informative too

  357. Avatar
    jeon jung gean

    Thanks a lot for great Valuable information.
    I am very excited to see next Lesson.

  358. Avatar

    Thank you for very informative videos.

  359. Avatar

    Hi Perry,

    It’s very much informative and hope to learn more. Thank you very much for your great lessons. I really appreciate your efforts.
    Good luck.

  360. Avatar

    What an informative lesson! I am so glad you are doing this because it is nearly impossible to find information like this that actually relates to cosmetics rather than just chemistry or biology in general. Looking forward to the next lesson.

  361. Avatar

    Thank you for the great course! I recently signed up, and am amazed by the value in the course content. Thank you so much for providing this stellar service.


  362. Avatar

    A very big help for me, thanks Perry!!!

  363. Avatar

    It’s really helpful for us, the beginers. Thanks, Perry, I’m waiting for thr next lesson.

  364. Avatar

    Nice and simple chemistry related to cosmetics. Well put forward in lesson 2.

  365. Avatar
    Raziq Dad

    thanks, it is really very nice and helpful.

  366. Avatar

    This is so very helpful to me. I can barely wait for the next course!

  367. Avatar
    Vivian Couto

    I’m really anxious to see the next lesson. Good work Perry, thank’s a lot.

  368. Avatar

    Thank you for making this video.

  369. Avatar
    marcelo freitas

    It’s very useful! Thank you, Perry!

  370. Avatar

    thank you very much perry, it was a brief and useful review of your book. I wish, I could be there in US to benefit from your complete training program.

    1. Avatar

      i should reply myself…!!!! i just saw that the program is online, so the only thing i need is a credit card 🙂

  371. Avatar

    thank u! was really interesting 🙂 specially the chemical names called by it’s trade name. Do u know where i can find at least some important or common cosmetic chamicals trade names and structure? thank u again!

  372. Avatar

    Thank you sooo much! But I just noticed something. In the first part (surfactants), you said hydrophobic instead of hydrophilic. Hihi. But seriously, thank you for this! Learning a lot! Can’t wait for the next parts 🙂

    1. Avatar
      Diana Lee

      True! lol but it was super helpful so it’s okay, people make mistakes :p

  373. Avatar

    It’s very useful!

  374. Avatar

    I think this lesson is more about biology. Overall, great video for knowing the applications of different ingredients used in the cosmetics.

  375. Avatar
    Paul Anthony

    I learn several things in each lesson. It’s a great service that your doing, helping a lot of up & coming cosmetic chemist. Thanks Perry your greatly appreciated.

  376. Avatar

    Hi Perry,
    I would like to introduce myself, my name is Corey, I have a B.S. in Chemistry, and several years experience in both the consumer product and chemical industries. I have recently taken a regulatory affairs position for a designer/distributer of children’s and teen cosmetics. I have found your website to be very helpful while learning to navigate the world of cosmetic chemistry, and would like to say thank you for the great resource you are providing. Cheers!


    1. Avatar

      Congratulations Corey! Keep us posted too, on your end of the cosmetic world.

  377. Avatar

    Hi Perry,

    This mini series was done very well. I am glad that Ifound out about Chemist Corner. I look forward to receiving more and enrolling in your course.
    Thanks Pat

  378. Avatar

    it’s great that you’re doing this because it makes me way less hesitant to enroll in the course itself. If this is just the mini course with good info, good pictures, good lectures, I’m sure the full course is the same and more. thanks!

  379. Avatar
    La Tronda Lumpkins

    Awesome video. Thanks for the overview. I now have a clearer idea of the key agents in cosmetic formulations.

  380. Avatar

    As a newby with no chemistry background, this has been an excellent presentation and acts as a short cut of knowledge. I am working on an organic, natural range of hair and body care products. I am self taught, but on the verge of taking some short private classes. I am aware of some of the contents in this video, however, you have brought them together very nicely giving a clearer understanding. You are a fantastic tutor, and I look forward to lesson 3.

    1. Avatar

      Thanks for the kind words Christine. I’m glad you liked the lesson.

  381. Avatar

    Again, FANTASTIC info!

  382. Avatar

    I like it and get idear for R&D new cosmetic production.
    Thank a lot.

  383. Avatar

    Nice overview. Thanks.

  384. Avatar
    Zenith Czora

    Nice presentation, some questions on surfactants and preservatives:
    1. Does the cosmetic industry uses the ethoxylated type of surfactant?
    2. On preservative, is there any preservative that are not formaldehyde base or formaldehyde donors?

    1. Avatar

      Hello Zenith – Thanks for the kind words.

      1. Yes, the cosmetic industry uses ethoxylated surfactants (e.g. Sodium Laureth Sulfate)
      2. Yes, there are parabens, organics, salts, alcohols, etc. See this post about preservatives.

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    jones appiah

    nice presentation but i want to buy the book and i am in Ghana. how do we begin the process

  386. Avatar
    Maya Devi

    Hello Perry! Wonderful video, again! I’m learning about cosmetics as I work in chemical trading that wants to expand our business to cosmetic ingredient. My background myself is actually a food technologist.

    Your video makes it simple and understandable.

    I have a question: surfactant, fatty acids, polymers, and silicones can act as a conditioning agent. How do a cosmetic chemists determine which one to use or which combination to use in their formula?

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    Nice video. A good overview of the main ingredients in cosmetics. I wasn’t able to find a better explaination of these topics anywhere else online. Thanks so much.

  388. Avatar
    megha jain

    itz a great video….lot of things i dint knw earlier…..thnx for telling such gr8 thngs…

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    Kevin Katechis

    Perry, very good video. However, there are some actives and transdermal penetration enhancers called TPCs (such as liposomes) that do penetrate the epidermis which are in OTC products today. As you know, if you make the claim that it penetrates the skin then the FDA considers it to be a drug and such claims are forbidden. I think it is important for chemists leaning towards the cosmeceutical track to understand this difference. I understand that this may be a little deeper than the scope you are targeting for your courses but should be mentioned don’t you think?

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      Good addition Kevin. I think the key is that cosmetics are not supposed to interact with the skin (or body) in the same way that OTC are allowed.

  390. Avatar
    Mai Hoang

    OMG, when I was watching your video, I felt like I just found a big bag of gold on the street :), and I just wanna kiss you <3. Thank you so much for your effort and your time. You have no idea how much your information help us (or at least me). I'm looking forward to 3rd video, and will enroll in your course any time soon. You're the best.

  391. Avatar

    Thanks for the kind words everyone!

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    With a decades old microbiology degree and an esthetician license, I am developing a very small line of skin care products. The information in these lessons is like hiring a good consultant. THANK YOU. I will sign up for your course when my finances allow. Please don’t give up on us… have a solid following out here.

  393. Avatar
    mohammed hafez

    Valuable information and very, very great
    I am very excited to see Lesson No. 3
    I wish you progress and lasting success

  394. Avatar

    You are my new inspiration, Perry 🙂 Thank you so much for sharing your knowledge so generously, I’m saving up for the course. I had a good laugh when I walked out for a cup of tea while leaving the video on and you started about ‘fatty acids’, cos when you’re not paying attention it sounds like something else entirely LOL

  395. Avatar
    Nancy Liedel

    Good coverage and interesting, while encouraging sales of the course. Nice job.

  396. Avatar
    Geng Li

    Great Work, appreciate for your effort

  397. Avatar
    Tolu Ade

    Awesome information! I really appreciate this mini course as it gives me an edge and overview!

  398. Avatar
    Thembi Mtombeni

    Thanks Perry, you really take your time to fill in the gaps of college education. Thank you, Don’t you think they should revamp curricula to make it more useful in the real world of a cosmetic chemist?

    1. Avatar

      Well, that would be nice but universities are more focused on training future chemical researchers and less on training future applications chemists. I think a course in ‘Applied Chemistry’ should be part of the curriculum.

  399. Avatar
    Jessie Desrouleaux

    Great job. We can all benefit from it. I wish I could afford your course. I ‘d be intersted in the color cosmetics section. Most of the other sections, I’m already practicing on the job. I wish there were more like you when I was starting out.

  400. Avatar

    Thank you so much for such a great overview. I really appreciate what you’re doing!!! Please Keep up the excellwent work.

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    Some noteworthy edits…

    There is a point in the video I say “hydrophobic” head. I meant to say “hydrophilic” head.

    At some point in the video I mix up the term silicon (the element) with silicone. It’s a pretty common error in the cosmetic industry to use them interchangeably. Most of the silicon-containing raw materials are silicone elastomers which are a class of polymers used as esthetic additives in skin and hair care products.

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    Gary Neudahl

    Good overview, with relevant basics for the new cosmetic chemist.

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    Hi Perry, Thanks so much! I did have organic chemistry in College (making perms and such LOL), but still am far from being a cosmetic scientist. Your help is very much appreciated! I am just starting out with soaps and such, but one day I will own a SPA! Thanks again for helping me along with the first steps, long way to go!

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    Thanks for the answer.

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    I admire all your videos!!!

  406. Avatar

    Yes, Perry. I do appreciate this lesson esp. for someone back to workforce from long me. Still waiting for the next lesson, and of course I’ll file this for my docs. I agree that the knowledge within this topics so huge and vast as science always develop and always being update like this lesson do is the answer.

  407. Avatar
    Marilyn Chan

    I really do appreciate your effort in sharing your time and knowledge of the industry. Nice lessons for start-up cosmetic chemists like myself. Keep up the good work.

  408. Avatar

    @Chrysa – not a silly question at all. There is the potential for penetration at the hair follicle however it just hasn’t been demonstrated to happen to any appreciable amount.

  409. Avatar

    I wonder-maybe a silly question-if a product applied on the skin, and on the skin there are hair of course, can that penetrate through the skin via the hairs’ pore?

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