Article by: Perry Romanowski

Welcome to Day 25 of the 30 Days to Become a Better Cosmetic Chemist series

This 30 day challenge is all about giving you lessons and basic exercises that will improve your abilities as a cosmetic chemist.  moisturizer effect

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In this episode

In today’s program we discuss cosmetic science and specifically talk about how skin moisturizers work. This is a topic that all cosmetic formulators should know whether you work in skin care or not since moisturization and skin moisturization in particular is one of the most basic functions of cosmetic products.

In this episode you’ll learn:

  • The basic function of skin
  • Skin structure and why moisturization products are needed
  • Ingredients that make moisturizers work
  • The differences between humectants, emollients and occlusive agents

Today’s challenge

For today’s challenge get some of the different skin moisturizing ingredients and see if you can tell a difference between them when placed on the back of your hand. Get a sample of glycerin, mineral oil and petrolatum and see if you notice any differences.

Write about your experience testing these ingredients in the comments below.

Skin moisturizing experiment

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