Film Former
CHITOSAN CROSSPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A crosslinked shellfish-derived polymer that forms a hydrating cationic film on skin and hair. Generally well tolerated but shellfish allergen risk is real for some users.
Skin benefits
- Cationic film former with film-forming hydration
- Mild antimicrobial property
- Biodegradable shellfish-derived backbone
Known concerns
- Shellfish allergen risk in atopic users
- Composition varies by chitosan source
- Limited public CIR for crosspolymer form
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.