INCI · surfactant · CIR review pending · used in 1 products
PEG-40 Stearate
PEG-40 Stearate is a polyethylene glycol ester of stearic acid with an average of 40 moles of ethylene oxide. Its CAS number is 9004-99-3 and its chemical name is poly(oxy-1,2-ethanediyl), α-(1-oxooctadecyl)-ω-hydroxy- (40 mol EO average molar ratio). It is a water-loving (hydrophilic) ingredient commonly found in creams, cleansers, and lotions.
Evidence level
weakEWG score
—Comedogenic
—Category
surfactant● Benefits
PEG-40 Stearate functions as a surfactant and emulsifier, helping to keep water and oil mixed together in formulations. Its primary role is to stabilize emulsions and aid in cleansing rather than delivering direct skin benefits.
emulsifyinghydrating
● Cautions
