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Preservative

POLYEPSILON-LYSINE

CAS 28211-04-3 Updated
80

Safety score · 0–100

Good

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

About

Epsilon-polylysine — a natural lysine polymer used as a gentle, food-grade preservative. Approved for food in Japan and the US; well tolerated on skin.

Function

SURFACTANT - EMULSIFYINGHAIR CONDITIONINGSKIN CONDITIONING - MISCELLANEOUS

Skin benefits

  • Natural preservative
  • Antimicrobial
  • Mild profile

Known concerns

  • Less effective against molds
  • Possible interaction 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.