Colorant
CI 77510
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Prussian blue — an iron-cyanide pigment used for deep blue makeup color. Safe at regulated purity; cyanide content is tightly controlled.
Function
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 CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
PubChem
U.S. NIH compound data, GHS hazard codes and toxicity literature.
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.