Cosmetic Formulation Science Made Simple
Formula Chemistry is your expert guide to cosmetic formulation featuring professional skincare & haircare formulas, in-depth ingredient guides, DIY recipes, and free formulas by Dr. SamiUllah, Ph.D. in Chemistry.

Workshops & Courses
Want to create something completely your own? Take a Humblebee & Me workshop!

Free Formulations
Over 1000 (!) completely free skincare, haircare, and cosmetic DIY projects.

DIY Encyclopedia
Learn about DIY skincare ingredients; what they do, why we use ’em, substitutions, and more!
New Posts & Formulations

Blog
Octyl Palmitate for Skin: Skin Feel, Solubility, Compatibility & Usage Levels | Formula Chemistry
Introduction A formula can have excellent actives and still feel cheap if the emollient system is poorly built. Octyl palmitate
23 May 2026
No Comments

Blog
Pyruvic Acid for Acne Formulation: How to Make an Effective DIY Treatment
Introduction Acne formulation is one of the most technically demanding areas in DIY cosmetic chemistry. Getting it wrong does not
18 May 2026
No Comments

Actives
Pyruvic Acid Ingredient Profile: INCI, Percentage, Peel Guide, and Safety
Introduction Few cosmetic acids punish casual formulation as quickly as pyruvic acid. The pyruvic acid ingredient profile matters because this
16 May 2026
No Comments