C9-15 Fluoroalcohol Phosphate

C9-15 Fluoroalcohol Phosphate is a fluorinated film-forming polymer used in color cosmetics and skincare. It creates thin, flexible coatings that improve spreadability and boost water, smudge, and transfer resistance.
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Snapshot

Overview
A film-former that helps makeup resist water, sweat, and smudging.
Category
Tone/Texture, Skin Conditioning
Type
Film Former

Ratings

Overall Rating

Fair

Comedogenic Risk

None

Not typically evaluated for comedogenicity — no standardized rating available.

Is C9-15 Fluoroalcohol Phosphate a Good Ingredient?

It's effective for long-wear, water-resistant films, but it offers minimal skincare benefit and independent data on it is limited, which is why it's rated Fair; it may also cause transient irritation, especially around the eyes or on sensitive skin.

Skin Benefits

Improves makeup longevity and creates a flexible film that helps color stay put through sweat and humidity, and improves glide during application for a smoother, more even finish.

Uses in Skincare & Cosmetics

Often included in long-wear foundations, liquid eyeliners, mascaras, and setting sprays to boost wear time and water resistance.

Safety

Generally considered safe at typical cosmetic levels with low skin penetration. Can cause dryness or stinging, particularly in long-wear eye or lip products; discontinue use if irritation occurs.