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Colorant

SHIKALKIN

CAS 117746-18-6/517-88-4/517-89-5 Updated
55

Safety score · 0–100

Moderate

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

About

A natural red-purple dye from gromwell/alkanet roots — the active naphthoquinones shikonin and alkannin. Long traditional use, but limited modern cosmetic safety data, so used cautiously.

Function

COLORANTSKIN CONDITIONING - MISCELLANEOUS

Skin benefits

  • Natural red-purple coloring
  • Reported antimicrobial activity
  • Traditional wound-soothing use

Known concerns

  • Naphthoquinone cytotoxicity at high doses
  • Limited modern dossier
  • Possible sensitization

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.