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Humectant

CHITOSAN PCA

CAS 117522-93-7 Updated
86

Safety score · 0–100

Good

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

About

Chitosan (from shellfish shells) combined with PCA (a natural moisturizing factor). Forms a gentle, breathable hydrating film on skin. Safe for most users; the only caveat is shellfish-allergy potential.

Function

FILM FORMINGHUMECTANTSKIN CONDITIONING

Skin benefits

  • Hydrating film former
  • Combines chitosan with NMF (PCA)
  • Gentle on sensitive skin

Known concerns

  • Shellfish allergy potential
  • Variable molecular weight

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 — always read the physical product label and consult a healthcare professional for personal concerns.