Ethylene/Propylene Copolymer
AKA “EPR, Ethylene propylene rubber”
Ingredient
Ingredient Facts
Ethylene/propylene copolymer
AKA: EPR, Ethylene propylene rubber
Ingredient · Film Forming · EWG: 1
Synthetic
Occlusive
Clean
Ethene, polymer with propene
CAS #
9010-79-1
Form
Liquid
State
Solid
See origin →
Functions
Abrasive
Bulking
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Physical Exfoliant
Adds Body & Volume
Creates Protective Barrier
Antioxidant Protection
Gently polishes surface
Creates protective layer
Adds volume
Traditional Use
A synthetic elastomer created in the mid-20th century. Used in cosmetics as a film-former and texture agent in primers, foundations, and long-wear formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Butylene/Ethylene/Propylene Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ethylene/Propylene Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Butylene/Ethylene/Propylene Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Ethylene/Propylene Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR