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Skin Conditioning

SILICON

CAS 7440-21-3 Updated
70

Safety score · 0–100

Fine

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

About

Elemental silicon used as a fine cosmetic powder. Skin-inert, but loose powders pose an inhalation concern around aerosol use.

Skin benefits

  • Inert mineral powder
  • Mild physical exfoliation
  • Mattifying skin feel

Known concerns

  • Inhalation hazard if airborne — crystalline silica concern
  • Particulate irritation on broken skin

References

EU

EU CosIng database

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

Related skin conditionings

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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.