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Hair dye intermediate

ETHYL HYDROXY PICOLINIUM LACTATE

CAS 220610-55-9
60

Safety score · 0–100

Fine

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

A pyridinium based coupler used in oxidative hair colour chemistry, supplied as a lactate salt. It helps formulators tune dye shades but inherits the typical sensitisation concerns of hair dye intermediates.

Skin benefits

  • Used as a coupler in oxidative hair colour formulas
  • Helps produce specific shade outcomes
  • Picolinium structure allows tuned reactivity
  • Salt form gives good water solubility for formulation

Known concerns

  • Hair dye couplers can trigger contact allergy
  • Limited published SCCS opinion on this specific molecule
  • Pyridinium quaternary salts can be irritating to mucous membranes
  • Not intended for leave on skin care exposure

References

EU

EU CosIng database

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

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M-DIMETHYLAMINOPHENYL UREA
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6-AMINO-M-CRESOL
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4,6-BIS-(2-HYDROXYETHOXY)-M-PHENYLENEDIAMINE HCL
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6-METHOXY-2,3-PYRIDINEDIAMINE HCL
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DIAMINOHEXYL TRIHYDROXYBENZAMIDE HCL
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Phenol, 3-amino-2,6- dimethyl
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Same plant / compound family

58
ETHYL HYDROXYHEPTYL KETONE
Fragrance
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ETHYL HYDROXYMETHYL OLEYL OXAZOLINE
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ETHYL HYDROXYPYRONE
Other

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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.