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BISMUTH SUBGALLATE

CAS 99-26-3
68

Safety score · 0–100

Fine

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

About

A bismuth coordination compound with historical use in cosmetics as an astringent and opacifying agent, particularly in decorative cosmetics and certain dermatological preparations.

Bismuth subgallate is the bismuth salt of gallic acid (3,4,5-trihydroxybenzoic acid), forming an insoluble coordination compound with astringent properties. It is used in cosmetic formulations for its opacifying effect and as an astringent in certain decorative cosmetics and anti-acne preparations. PubChem safety score is 68. The compound has been used for decades with a generally favorable safety profile, though its heavy metal character requires standard precautions.

Skin benefits

  • Astringent properties for oily skin
  • Opacifying agent in decorative cosmetics
  • Used in anti-acne and soothing formulations

Known concerns

  • Insoluble bismuth compound may cause staining
  • Generally low toxicity but requires standard heavy metal precautions

References

EU

EU CosIng database

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

Related others

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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.