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Preservative

HEXAMIDINE DIISETHIONATE

CAS 659-40-5 Updated
65

Safety score · 0–100

Fine

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

About

A cationic antimicrobial preservative used at very low %. EU caps it at 0.1% and there is documented skin sensitization risk in some users; effective in acne care.

Function

ANTI-SEBORRHEICANTIMICROBIALPRESERVATIVE

Skin benefits

  • Antimicrobial preservative
  • Soothing and anti-blemish in some formulas
  • Effective at low %

Known concerns

  • EU restricts to max 0.1%
  • Possible skin sensitization in some users
  • Cationic — incompatible with anionic surfactants

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.