You can’t make cosmetic and personal care products without raw materials. Here is some useful information about raw materials that will get you on your way to creating the best beauty products you can. 
Background information about cosmetic ingredients
What is a cosmetic ingredient?
Cosmetic ingredient naming guide – part 2
Types of cosmetic ingredients
The three types of cosmetic raw materials
Varieties of cosmetic emollients
Formula adjustment ingredients
Preservatives for natural formulas
Why use multiple preservatives
Selecting colors for a formula
Types of peptides in cosmetics
9 topical cosmetic compounds that work
Claims ingredients in cosmetics
Do natural extracts in cosmetics make sense?
Other things to know about ingredients
Understanding cosmetic raw material research
How to know if an ingredient has an effect
Even with the same name, raw materials aren’t always the same
Most active ingredients don’t work
Why are some ingredients liquid and some solid?
What to ask about your raw materials
What makes one ingredient better than another?
Podcasts about raw materials