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CARBOXYMETHYL CHITOSAN
Safety score · 0–100
Excellent
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A chitosan derivative that acts as a biodegradable film-forming polymer, highly moisturizing and safe for cosmetic use.
Carboxymethyl Chitosan is a water-soluble derivative of chitosan (deacetylated chitin from crustacean shells). It is listed as a safe polymer in EU cosmetics regulation with no restriction entries. The carboxymethyl group enhances water solubility while preserving chitosan biocompatibility and biodegradability. It is widely used in skincare for its moisturizing, wound-healing, and film-forming properties. Crustacean allergy disclosure is recommended. PubChem CID 71306969 confirms its well-studied status.
Skin benefits
- moisture retention
- film-forming protective barrier
- wound healing support
- enhanced skin feel
Known concerns
- crustacean (shellfish) origin - potential allergen disclosure needed
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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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.