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Calcium silicate mineral

WOLLASTONITE

CAS 13983-17-0
50

Safety score · 0–100

Moderate

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

A natural calcium silicate mineral used as a matte filler in cosmetic powders. Skin contact is benign, but fibrous grades raise inhalation concerns, so cosmetic use requires controlled non-respirable particle sizes.

Skin benefits

  • Naturally occurring calcium silicate mineral
  • Provides matte finish and texture in powders
  • Inert filler in some colour cosmetics
  • Stable and chemically benign on skin

Known concerns

  • Fibrous wollastonite can present inhalation hazard during manufacture
  • Respirable fibres prompt occupational exposure controls
  • Cosmetic-grade specification needs particle-size verification
  • Not appropriate in aerosolizable products without controls

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.