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Colorant (prohibited)

Colouring agent CI 45170, Colouring agent CI 45170:1 (Basic Violet 10)

CAS 81-88-9 / 509-34-2
25

Safety score · 0–100

Caution

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

Rhodamine B, a synthetic pink-violet dye historically used as a cosmetic colorant but now prohibited in EU cosmetics due to suspected carcinogenicity and mutagenicity in regulatory assessments.

Skin benefits

  • Produces intense pink to violet shades in cosmetic colorants
  • Historically used as a vivid dye in some decorative cosmetics
  • Provides strong tinctorial strength at low concentrations

Known concerns

  • Rhodamine B (CI 45170) is listed as suspected carcinogen and mutagen in regulatory databases
  • Prohibited as a cosmetic colorant under EU Cosmetics Regulation Annex II
  • Animal studies have shown carcinogenic potential
  • Not permitted for use in cosmetic products in the EU

References

EU

EU CosIng database

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

Same plant / compound family

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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.