Hydrogenated Styrene

Hydrogenated Styrene molecular structure
molecular structure · PubChem
AKA: Hydrogenated Polystyrene, Hydrogenated Styrene Polymer
Synthetic
Occlusive
Clean
OriginDerived from styrene, an aromatic hydrocarbon monomer produced from petroleum or natural gas feedstocks. Produced through catalytic hydrogenation of polystyrene or styrene polymers to saturate carbon-carbon double bonds.
Ethenylbenzene, polymer with 1,3-butadiene, hydrogenated
CAS #
66070-58-4
Form
Powder
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Creates Protective Barrier
Controls Viscosity
Anti-Aging Benefits
Antioxidant Protection
Reduces Inflammation
Creates protective layer
Controls product thickness
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe w/Qualifications
Pregnancy
Yes
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR