Docosanoic acid, 2-(1-carboxyethoxy)-1-methyl-2-oxoethyl ester, sodium salt
Formula
C28H51NaO6
Mol. Weight
506.70
CAS #
27847-75-2
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Emulsifier
Removes Impurities
Mixes Oil & Water
Traditional Use
A modern synthetic ingredient combining behenic acid with lactic acid, developed in the 20th century as a conditioning and emulsifying agent. Designed to improve the texture and sensory feel of skincare and haircare products.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
Industry max
Industry typically uses up to 11.8% in leave-on products (5 products reported). Source: CIR Safety Assessment (CIR Seq 758).