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Colorant

Aluminium

CAS 7429-90-5 Updated
70

Safety score · 0–100

Fine

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

About

Pure aluminium flakes used as a metallic pigment in nail polish and makeup. Inert in flake form; main caveats are inhalation and contact with broken skin.

Skin benefits

  • Inert metallic pigment for cosmetics
  • Provides metallic sheen in nail and eye products
  • Approved as Annex IV colorant

Known concerns

  • Inhalation in loose powders
  • Trace soluble aluminium release possible
  • Avoid use on broken skin

References

EU

EU CosIng database

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

Related colorants

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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.