C12-18 Alkanoyl Glycerin/Sebacic Acid Copolymer

A synthetic copolymer derived from glycerin alkanoyl groups and sebacic acid that forms flexible films on skin. It's used to improve product wear, boost spreadability, and provide a soft, conditioned feel in lotions and makeup.
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Ingredient Snapshot

Overview
A film-forming ingredient that helps makeup wear longer.
Category
Skin Conditioning, Tone/Texture
Type
Film Former

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Improves longevity and smudge resistance of cosmetics while improving glide, and leaves a silky, lightweight finish that can lessen tackiness.

Uses In Skincare & Cosmetics

Common in long-wear foundations, primers, and body lotions to improve a polished finish, and also used in tinted moisturizers and BB creams to improve laydown and consistency.

Comedogenic Rating

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

Safety

Typically well tolerated with a low likelihood of irritation at normal use levels. As a film former it can occlude briefly, which may intensify the feel of other actives on very sensitive skin. No specific regulatory limits are commonly cited.

Is C12-18 Alkanoyl Glycerin/Sebacic Acid Copolymer a Good Ingredient?

It reliably boosts wear and slip through a flexible film and is generally low-irritating and stable in formulas, which earns a Good rating; it lacks strong evidence for direct skin improvements beyond texture optimization, which keeps it short of Great.