Soy Sterol Acetate

AKA: Soybean Sterol Acetate

Synthetic

Cleanser

Emulsifier

Skin Conditioner

Not Clean

OriginDerived from soybean oil sterols, a class of plant-derived lipid compounds chemically modified through acetylation. Produced by esterifying soybean sterols with acetic anhydride or acetic acid under catalytic conditions.

Sterols, soybean, acetates

Skin Types

●all-skin-types

Best For

Dryness

Pregnancy & Breastfeeding Safe

Caution

Allergen Warning

⚠️ Soy

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.

Emulsifying

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Locks in moisture

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Caution

Concentration Guide

CIR's newest survey reports no concentration of use.

CIR · report published 2013

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR