Polymer or conditioner
SULFONATED CHITOSAN
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A water-soluble chitosan modified with sulfonate groups, used as a moisture-binding and film-forming polymer in skincare and haircare. It is biocompatible and well tolerated but usually shellfish-derived.
Function
Skin benefits
- Water-soluble chitosan derivative with film-forming and moisturising properties
- Sulfonate groups improve solubility and antioxidant performance
- Biocompatible, biodegradable polymer of natural origin
- Adds substantivity to hair and skin formulations
Known concerns
- Chitosan is typically sourced from shellfish, with allergy implications for some users
- Quality and degree of sulfonation vary between suppliers
- Limited cosmetic-specific safety reviews under this exact INCI
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, so always read the physical product label and consult a healthcare professional for personal concerns.