Ethylene/Propylene/Styrene Copolymer
AKA “Ethylene Propylene Styrene Copolymer, E/P/S Copolymer”
Ingredient
Ingredient Facts
Ethylene/propylene/styrene copolymer
AKA: Ethylene Propylene Styrene Copolymer, E/P/S Copolymer
Ingredient · Viscosity Controlling · EWG: 2
Synthetic
Clean
Ethylene/Propylene/Styrene Copolymer is a polymer of ethylene, propylene and styrene monomers that has been terminated by hydrogenation
CAS #
66070-58-4
Form
Liquid
State
Solid
See origin →
Functions
Viscosity Controlling
Controls Viscosity
Traditional Use
A synthetic polymer developed in the late 20th century for use in cosmetics as a film-forming and suspending agent, replacing natural gums in formulations.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Agencies
Ethylene/Propylene/Styrene Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydrogenated Ethylene/Propylene/Styrene Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ethylene/Propylene/Styrene Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Hydrogenated Ethylene/Propylene/Styrene Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR