Hydrogenated Styrene Isoprene Copolymer
AKA “● 2-METHYLBUTA-1, POLYMER WITH 2-METHYL-1, 3-BUTADIENE
Synthetic
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Ingredient Facts
Hydrogenated styrene isoprene copolymer
AKA: ● 2-METHYLBUTA-1, POLYMER WITH 2-METHYL-1, 3-BUTADIENE
Synthetic · Viscosity Controlling | Film Forming | Skin Conditioning - Emollient | Smoothing · EWG: 5
Plant-Derived
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
A texture enhancer that gives products a smooth, luxurious consistency. Helps creams and serums glide onto skin effortlessly while maintaining their shape.
CAS #
68648-89-5
Form
Liquid
Plant-Derived
Synthetic. Synthesized from styrene and isoprene monomers, both petroleum-derived hydrocarbons from the chemical industry. Produced through controlled polymerization followed by catalytic hydrogenation to saturate double bonds.
Function
Viscosity Controlling | Film Forming | Skin Conditioning - Emollient | Smoothing
Benefits
Controls Viscosity
Skin Types
all-skin-types
Best For
Melanin-Rich Skin
Suitable
EWG Score5
CIR Safety Findings
all-shades-safe
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG