Aluminum Stearates
molecular structure · PubChem
AKA: Thickening Agent
Plant-Derived
Emollient
Emulsifier
Skin Conditioner
Plant Oil
Not Clean
Aluminum distearate and aluminum tristearate
CAS #
-
Form
Wax
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
Traditional Use
Modern synthetic aluminum salts used since the mid-20th century as thickening and emulsifying agents in cosmetics. Designed to improve texture and stability of creams, lotions, and powders.
Skin Types
●all-skin-types
Best For
General
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: CosIng · EWG · CIR