Hydrogenated Ethylene/Propylene/Styrene Copolymer
AKA “Hydrogenated Polymer, HEPS Copolymer
Synthetic
Ingredient Facts
Hydrogenated ethylene/propylene/styrene copolymer
AKA: Hydrogenated Polymer, HEPS Copolymer
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Synthetic
Clean
Ethenylbenzene, polymer with propene and ethene, hydrogenated Science: Process: Catalytic Hydrogenation | Functions: Light Stabilizer, Skin Conditioning - Emollient, Viscosity Controlling Safety Ratings: CIR: Safe as used
Form
Liquid
State
Solid
See origin →
Functions
Light Stabilizer
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
Traditional Use
This is a synthetic polymer developed in the 20th century for industrial and cosmetic applications. It was created to function as a thickener and stabilizer in modern skincare products, with no traditional use.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR