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Colorant

CI 77510

CAS 12240-15-2 / 25869-00-5
70

Safety score · 0–100

Fine

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

Prussian blue — an iron-cyanide pigment used for deep blue makeup color. Safe at regulated purity; cyanide content is tightly controlled.

Function

COLORANT

Skin benefits

  • Deep blue pigment for makeup
  • Stable under UV
  • Opacity and color strength

Known concerns

  • Historically ferrocyanide-based — tight cyanide impurity limits
  • Not permitted in eye area by some regulators

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.