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Colorant

HC BLUE NO. 13

50

Safety score · 0–100

Moderate

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

A synthetic semi-permanent hair dye giving blue tones in oxidative colour. EU Annex III caps and sensitisation flags keep this in the orange tier.

Function

HAIR DYEING

Skin benefits

  • Provides blue tone in oxidative hair colour
  • Used at low concentrations
  • Approved with EU restrictions

Known concerns

  • EU Annex III restricted hair dye
  • Skin sensitisation potential
  • Not approved for eyelash or eyebrow use
  • Limited long-term safety data on synthetic dyes

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.