Cellulose Acetate Butyrate is a modified cellulose polymer in which hydroxyl groups are esterified with acetic and butyric acids. It's used in beauty products as a film-former that adds flexibility, gloss, and wear in coatings like polishes and makeup.
A flexible film-former that keeps polish glossy and crack-free.
Category
Tone/Texture
Type
Film Former
Ingredient Ratings
Overall Rating
Good
Comedogenic Risk
None
Skin Benefits
Forms a flexible, lustrous layer that resists cracking and helps makeup maintain a polished look longer.
Uses In Skincare & Cosmetics
Used in nail topcoats, liquid eyeliners, and long-wear lip colors to improve shine and durability.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
Considered low risk for irritation in most users. If sensitivity develops, such as itching or redness, stop use and reassess exposure, especially around the eyes.
Is Cellulose Acetate Butyrate a Good Ingredient?
It forms flexible, glossy films that improve wear and appearance, with generally low irritation risk, which is enough for a Good rating, though its skincare activity is minimal.