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Preservative / antimicrobial

MYRISTALKONIUM SACCHARINATE

CAS 23661-75-8
45

Safety score · 0–100

Moderate

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

A quaternary ammonium antimicrobial used as a preservative and conditioning agent in cosmetics. Effective against microbes but can irritate skin and eyes, especially in leave-on products at higher levels.

Skin benefits

  • Antimicrobial preservation in cosmetic formulas
  • Cationic surfactant providing conditioning
  • Effective against bacteria and fungi
  • Helps extend product shelf life

Known concerns

  • Quaternary ammonium compound, may irritate skin and eyes
  • Can cause contact dermatitis in sensitive individuals
  • Mucous membrane irritant at higher concentrations

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.