Aluminum Stearates

AKA: Thickening Agent

Plant-Derived

Emollient

Emulsifier

Skin Conditioner

Not Clean

OriginDerived from stearic acid, typically sourced from vegetable oils like palm or coconut. Synthesized by esterifying stearic acid with aluminum salts through chemical reaction.

Aluminum distearate and aluminum tristearate

CAS #

-

Form

Wax

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Anticaking

Emulsion Stabilising

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

Opacifying

Emollient

Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.

Viscosity Controlling

Locks In Moisture

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.

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

CIR's newest survey reports no concentration of use.

CIR · 2016 survey

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