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Restricted nanomaterial

Silver (powder) [100 nm < particle diameter < 1 mm]

CAS 7440-22-4
8

Safety score · 0–100

Avoid

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

Silver in nanoparticle to micro-particle size range. Heavily restricted in EU cosmetics due to potential systemic absorption, nanoparticle toxicity concerns, and possible skin discolouration with chronic use.

Skin benefits

  • Historically used for antimicrobial properties
  • Provides metallic pigmentation effects in some niche products

Known concerns

  • Nanoform silver is restricted under EU Cosmetics Regulation 1223/2009 and listed under Annex II/III scrutiny
  • Potential for systemic absorption via skin and inhalation when in nanoparticle form
  • Possible argyria (skin discolouration) with chronic exposure
  • Genotoxicity and reproductive toxicity concerns flagged by SCCS

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Check your shelf

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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.