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Polyglyceryl-8 Stearate
AKA “Polyglyceryl-8 Stearate”
Surfactant
Ingredient Facts
Polyglyceryl-8 stearate
Surfactant · Emulsifying · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Not Clean
1,2,3-Propanetriol, homopolymer, monooctadecanoate
CAS #
37349-34-1, 75719-57-2
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Mixes Oil & Water
Traditional Use
A synthetic emulsifier combining glycerin with stearic acid, a fatty acid present in animal fats and plant oils historically used in soap-making. Modernized for stable cosmetic formulations.
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