Hydrogenated Ethylene/Propylene/Styrene Copolymer
molecular structure · PubChem
AKA: Hydrogenated Polymer, HEPS Copolymer
Synthetic
Emollient
Skin Conditioner
Clean
Ethenylbenzene, polymer with propene and ethene, hydrogenated
Form
Liquid
State
Solid
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.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR