Aluminum Isostearates/Laurates/Stearates
AKA “Aluminum Fatty Acid Salts
Ingredient
Ingredient Facts
Aluminum isostearates/laurates/stearates
AKA: Aluminum Fatty Acid Salts
Ingredient · Emulsion Stabilising · EWG: 4
Plant-Derived
Emulsifier
Plant Oil
Not Clean
Isostearic, lauric, stearic acids mixture, aluminum salt
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
Viscosity Controlling
Prevents Clumping
Stabilizes Emulsion
Adds Opacity
Controls Viscosity
Keeps product blended
Creates creamy opacity
Controls product thickness
Traditional Use
Synthetic aluminum salt blend created in the 20th century to thicken and emulsify cosmetic products. Designed to provide superior stability compared to traditional soap-based emulsifiers.
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
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR