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Other Heavy Metal

SILVER OXIDE

CAS 20667-12-3
20

Safety score · 0–100

Caution

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

Silver oxide — a heavy-metal antimicrobial restricted in EU cosmetics. Chronic silver exposure can cause permanent skin discolouration (argyria); avoid in skincare.

Skin benefits

  • Antimicrobial silver source for surface treatments

Known concerns

  • Silver compounds are restricted in EU cosmetics; not on positive lists for general use
  • Risk of argyria (irreversible blue-grey skin discolouration) with chronic exposure
  • GHS-classified as harmful and as oxidizer in industrial use
  • Heavy-metal release in formula

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.