Day 16 – Product Testing Required Before Launching

Welcome to Day 16 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.

Get your copy of the Become a Better Cosmetic Chemist workbook

In this episode

On today’s program we’re going to talk about the types of tests you need to do on your cosmetic formulas before you start marketing and selling it.

In this episode you’ll find:

  • The four types of tests you must run
  • Different kinds of microbial tests and what they do
  • More information about stability and safety testing
  • The reason you need to do performance and claims testing

Today’s Challenge

Choose either one of your own products or a competitor’s product and make a list of all the tests that should have been done prior to launch.

Useful resources: or

Example: TRESemme Platinum Strength Strengthening Shampoo

Required tests – Stability testing, microbial challenge tests, claims testing

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