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Colorant

FERRIC AMMONIUM CITRATE

CAS 1185-57-5
70

Safety score · 0–100

Fine

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

An iron(III) ammonium citrate complex used mainly as a hair colour modifier. Long-standing cosmetic use at low levels with mild irritation potential — solid yellow.

Function

HAIR DYEING

Skin benefits

  • Hair colour modifier in oxidative dyes
  • Iron source for specific formulation needs
  • Used at low concentrations
  • Long history of cosmetic use

Known concerns

  • Can stain skin and fabric
  • Iron salts can catalyse oxidation in formulas
  • Mild eye and skin irritation potential at high levels

References

EU

EU CosIng database

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

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Same plant / compound family

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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.