A gentle cleanser that removes dirt and oil while helping blend water and oil-based ingredients into a smooth, stable formula.
Formula
C38H70O4
Mol. Weight
591.00
CAS #
9005-07-6
Form
Liquid
State
Lemon to orange oily liquid or semi-gel with a mild odor; [JECFA] Liquid; mp = 15 deg C; [Sigma-Aldrich MSDS]
See origin →
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
Locks In Moisture
Antioxidant Protection
Anti-Aging Benefits
Removes Impurities
Mixes Oil & Water
Traditional Use
Oleic acid is found in olive oil, which has been used in skincare for millennia. The PEG-75 dioleate version was developed in the 20th century as a synthetic emulsifier that improves product stability and sensory properties.