Polyglyceryl-5 Stearate
AKA “Polyglyceryl-5 Stearate”
Surfactant
Ingredient Facts
Polyglyceryl-5 stearate
Surfactant · Emulsifying · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Not Clean
Polyglyceryl-5 Stearate is the monoester of stearic acid and Polyglycerin-5
CAS #
37349-34-1
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
Synthesized in the mid-to-late 20th century from polyglycerin and stearic acid. Designed as a versatile emulsifier to replace traditional soap and animal-derived emulsifiers in a wide range of cosmetic products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR