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Buffering / abrasive mineral

TRIMAGNESIUM PHOSPHATE

CAS 7757-87-1
78

Safety score · 0–100

Fine

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

Trimagnesium phosphate is an inorganic mineral salt used as a mild abrasive, buffer, and anticaking agent in toothpastes and powders. It is broadly safe topically but its dust can irritate eyes and airways.

Skin benefits

  • Used as a buffering agent and mild abrasive in toothpastes and powders
  • Acts as an anticaking and opacifying mineral filler in cosmetic powders
  • Generally considered low-toxicity inorganic salt

Known concerns

  • Some forms flagged with H315/H319/H335 (skin, eye, respiratory irritation)
  • Fine powder can be a respiratory irritant if inhaled during application
  • Not appropriate for use on broken or compromised skin in high concentration

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.