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Polysaccharide / Film former

CHITOSAN PROPYLSULFONATE

CAS -
75

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A water-soluble sulfonated chitosan polymer offering film-forming, moisturizing and mild antibacterial properties. Generally well tolerated, though some shellfish-allergic users may prefer to avoid it.

Skin benefits

  • Chitosan derivative with film-forming and moisturizing benefits
  • Sulfonate group improves water solubility and substantivity
  • Supports skin barrier and offers mild antibacterial activity
  • Biocompatible polysaccharide backbone

Known concerns

  • Chitosan comes from shellfish, possible allergy concern for sensitive users
  • Limited dedicated safety reviews on the propylsulfonate derivative
  • Quality and degree of substitution vary by source

References

EU

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.