Film Former
CARBOXYBUTYL CHITOSAN
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A carboxylated chitosan derivative used as a film-forming, conditioning polymer. Generally low-risk at cosmetic use; shellfish-allergic users should patch test.
Function
Skin benefits
- Film-forming biopolymer
- Hair and skin conditioning
- Carries slight skin-soothing properties
Known concerns
- Possible shellfish-source sensitivity
- Limited published cosmetic safety data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.