Ethylene/Propylene/Styrene Copolymer
AKA “Ethylene Propylene Styrene Copolymer, E/P/S Copolymer
Synthetic
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Ingredient Facts
Ethylene/propylene/styrene copolymer
AKA: Ethylene Propylene Styrene Copolymer, E/P/S Copolymer
Synthetic · Viscosity Controlling | Film Forming | Skin Conditioning - Emollient | Texture Enhancing · EWG: 2
Plant-Derived
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
Ethylene/Propylene/Styrene Copolymer is a polymer of ethylene, propylene and styrene monomers that has been terminated by hydrogenation Science: Functions: Viscosity Controlling Safety Ratings: CIR: Safe as used
CAS #
66070-58-4
Form
Liquid
Plant-Derived
Synthetic. Derived from ethylene, propylene, and styrene monomers, which are petrochemical hydrocarbons. Synthesized through catalytic polymerization of the three monomers, then hydrogenated to saturate bonds.
Function
Viscosity Controlling | Film Forming | Skin Conditioning - Emollient | Texture Enhancing
Benefits
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
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score2
CIR Safety Findings
ewg-2, medical-approval, pregnancy-nursing-safe, all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR