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Colorant

BASIC BLUE 6

CAS 966-62-1 Updated
25

Safety score · 0–100

Caution

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

About

A blue phenazine cationic hair dye (Meldola Blue class). Cationic aromatic-amine dyes carry sensitisation and historical safety concerns, so it sits in the red tier.

Function

HAIR DYEING

Skin benefits

  • Strong blue cationic dye for hair colour
  • Vivid hue on hair fibre

Known concerns

  • Cationic phenazine hair-dye class with documented sensitisation
  • Aromatic-amine class linked to historical CMR concerns
  • Limited GHS data; treated cautiously by EU regulators

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 — always read the physical product label and consult a healthcare professional for personal concerns.