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Aluminum Stearates
AKA “Aluminum Stearate, Thickening Agent”
Emollient
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Ingredient Facts
Aluminum stearates
AKA: Thickening Agent
Emollient · Emollient · EWG: 4
Plant-Derived
Emollient
Emulsifier
Skin Conditioner
Plant Oil
Not Clean
Aluminum distearate and aluminum tristearate
CAS #
-
Form
Wax
See origin →
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
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR