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Hair Dye

HYDROXYETHYL METHYLTOLYLAMINE

CAS 2842-44-6 Updated
42

Safety score · 0–100

Moderate

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

About

An aromatic amine used as a coupler in oxidative hair dyes. Limited to rinse-off hair color; main concern is contact sensitization typical of this chemistry.

Function

FILM FORMINGNAIL CONDITIONING

Skin benefits

  • Hair dye coupler component
  • Provides shade modification in oxidative dyes

Known concerns

  • Potential skin sensitizer typical of aromatic amine dyes
  • H319 eye irritation per ECHA notifications
  • Contact allergy risk in patch-test populations

References

EU

EU CosIng database

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

Related hair dyes

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BASIC RED 51
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DIHYDROXYINDOLE
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HC RED NO. 8
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M-AMINOPHENOL
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N,N'-BIS(2-HYDROXYETHYL)-2-NITRO-P-PHENYLENEDIAMINE
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4-AMINO-2-HYDROXYTOLUENE SULFATE
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DIHYDROXYINDOLINE
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HC BLUE NO. 15
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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.