Film Former
HYDROXYETHYL CHITOSAN
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A water-soluble derivative of chitosan from shellfish, used as a gentle film-former and conditioner. Strong skin-tolerance record; main caveat is shellfish-allergen origin.
Function
Skin benefits
- Marine-derived cationic film former
- Soothing and moisture-binding
- Mild antimicrobial activity
Known concerns
- Crustacean origin — shellfish allergen risk
- Possible mild build-up on hair
- Sensitive to formulation pH
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.