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
Pyruvic Acid vs Glycolic Acid: Which Is Stronger and Which Should You Formulate?
Introduction Choosing between pyruvic acid and glycolic acid is not as simple as picking the stronger one. Strength without context
12 May 2026
No Comments
Bodycare
Pyruvic Acid Formula: Free DIY Professional-Grade Cosmetic Peel Guide
Introduction Most DIY formulators reach for glycolic or salicylic acid when building a peel. Pyruvic acid rarely makes that list,
11 May 2026
No Comments
Actives
Preservatives in Cosmetic Formulation: How Chelating Agents Like Phytic Acid Help
The Preservation Gap Most Formulators Do Not See Coming A formula can pass a preservative efficacy test at launch and
9 May 2026
No Comments