What it is
Cetyl Stearate is a fatty ester formed from cetyl alcohol and stearic acid, appearing as a waxy solid that contributes body and a smooth, cushiony feel to emulsions. It works as an emollient and thickener, helping stabilize creams and lotions and leaving a soft afterfeel on skin. It is a common structural ingredient in sunscreen creams and balms.
Safety & warnings
Generally well tolerated and non-sensitizing. As a fatty wax ester it has some occlusive character, so individuals very prone to congestion may wish to monitor their response in rich formulas.
Origin & sourcing
Synthetic; an ester of cetyl alcohol and stearic acid, the building blocks of which may be plant- or petroleum-derived.
Questions everyone asks
What is Cetyl Stearate?
It is a waxy fatty ester of cetyl alcohol and stearic acid used as an emollient and thickener.
What does it add to a cream?
It builds body and a smooth, cushiony texture while softening the skin.