Hydrogenated Styrene/Methylstyrene/Indene Copolymer

Hydrogenated styrene/methylstyrene/indene copolymer is a refined terpolymer made by saturating aromatic monomers for greater clarity, flexibility, and stability. It builds cohesive, glossy films, boosts adhesion, and helps tune viscosity in color cosmetics.
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Ingredient Snapshot

Overview
A film-forming polymer that boosts makeup's shine and staying power.
Category
Tone/Texture
Type
Film Former

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Improves staying power and shine while minimizing migration or feathering. Helps products spread evenly and set with a polished look.

Uses In Skincare & Cosmetics

Common in lip glosses, liquid lipsticks, and gel liners for lasting, glossy payoff. Also used in hair styling pomades and finishing products to add grip and control.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Low likelihood of irritation in normal use; avoid contact with eyes, as film formers can cause transient discomfort. Not linked to common photosensitivity or specific cosmetic restrictions.

Is Hydrogenated Styrene/Methylstyrene/Indene Copolymer a Good Ingredient?

Rated Good because it builds cohesive, glossy films that improve staying power and control viscosity with stable performance. It improves finish and grip in formulas and carries a generally low irritation profile, but like other film-formers, its benefits stay cosmetic rather than skin-treating, which keeps it at Good instead of Great.

Products with Hydrogenated Styrene/Methylstyrene/Indene Copolymer

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