PEG-20 Glyceryl Diisostearate is a cosmetic ingredient used as surfactant - cleansing, surfactant - emulsifying. Assessed as safe by the CIR.
CAS #
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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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Cleansing
Surfactant Emulsifying
Moisturizing
Strengthens Barrier
Lifts away dirt and oil
Mixes oil and water
Traditional Use
A modern synthetic emulsifier developed in the late 20th century by chemically combining glycerin (historically used as a humectant in skincare) with isostearic acid and polyethylene glycol to create a stable, water-soluble ingredient for cosmetic formulations.