INCI · surfactant · CIR review pending · used in 5 products
Isostearic Acid
Isostearic acid is a liquid fatty acid derived from oleic acid. It is noted for its odour, thermal, and oxidation stability. It is commonly used in cosmetic formulations for the stabilization of pigments and mineral particles in oils and solvents, and is particularly popular in foundations.
Evidence level
weakEWG score
—Comedogenic
—Category
surfactant● Benefits
Isostearic acid helps stabilize pigments and mineral particles in oil-based and solvent-based formulations. Its liquid form and stability profile make it a functional emulsifying and binding agent in cosmetics.
emulsifyingpigment-stabilizing
● Cautions
