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Ingredient Facts
Peg-90 diisostearate
AKA: Polyethylene glycol 90 diisostearate
Ingredient · Cleansing · EWG: 4
Plant-Derived
Cleanser
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxo-16-methylheptadecyl)-.omega.-[(1-oxo-16-methylheptadecyl)oxy]- (90 mol EO average molar ratio)
Form
Liquid
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.
Removes Impurities
Traditional Use
A synthetic emulsifier developed in the mid-20th century combining polyethylene glycol with isostearic acid (a branched form of stearic acid). Created to provide stable, mild emulsification for modern cosmetic and personal care formulations.