Skip to content

CHITOSAN PROPYLSULFONATE

CAS -
83

Safety score · 0–100

Good

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

About

A modified biopolymer of chitosan with sulfonate groups that conditions skin and hair, providing a protective film and antimicrobial benefits.

Chitosan Propylsulfonate is a chemically modified chitosanderived from crustacean shells, where 1,3-propanesultone introduces propylsulfonate groups to improve water solubility and cationic character. The resulting polymer has substantivity for skin and hair, forming a thin conditioning film. It is not restricted under EU Regulation 1223/2009, though the starting material 1,3-propanesultone (CAS 1120-71-4) is classified as a CMR substance; the chemical modification renders the final ingredient distinct.

Skin benefits

  • Forms conditioning film on skin and hair
  • Provides moisture-retention benefits
  • Antimicrobial properties in formulation

Known concerns

  • Derived from shellfish - caution for individuals with crustacean shellfish allergy
  • Residual 1,3-propanesultone should be monitored in purification

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Check your shelf

Find CHITOSAN PROPYLSULFONATE in your products.

Scan any cosmetic product with LuxSense to see if it contains CHITOSAN PROPYLSULFONATE and get a full ingredient breakdown with safety scores.

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.