Stearyl Acetate
molecular structure · PubChem
AKA: Octadecyl acetate, Acetic acid, Octadecyl ester, Acetic acid n-octadecyl ester, Octadecanol acetate, 1-Octadecyl acetate
Plant-Derived
Emollient
Skin Conditioner
Plant Oil
Clean
Octadecyl acetate has been reported in Zinnia elegans and Rhodiola rosea with data available.
Formula
C20H40O2
Mol. Weight
312.50
CAS #
822-23-1
Form
Liquid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Created as a synthetic ester in modern cosmetic formulation. Designed to provide emollient and slip properties in skincare and color cosmetics.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR