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Antimicrobial

SACCHAROMYCES/SILVER FERMENT

CAS -
55

Safety score · 0–100

Moderate

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

A yeast ferment grown with silver — marketed as antimicrobial. Silver carries argyria and regulatory concerns, and independent cosmetic data is thin.

Skin benefits

  • Marketed antimicrobial/preservative-boosting ferment
  • Adds silver as trace mineral

Known concerns

  • Argyria risk from cumulative silver exposure
  • EU restricts silver in cosmetics
  • Limited independent efficacy data

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.