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Banned Substance

3,3-Bis(4-hydroxyphenyl)phthalide (Phenolphthalein (INN))

CAS 77-09-8
4

Safety score · 0–100

Avoid

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

Phenolphthalein is a banned laxative drug and IARC Group 2B possible carcinogen. EU Annex II prohibits its use in cosmetics; no skincare application.

Skin benefits

  • Not for cosmetic use

Known concerns

  • EU Annex II banned drug
  • IARC Group 2B possibly carcinogenic to humans
  • Reproductive/genotoxic concerns

References

EU

EU CosIng database

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

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Check your shelf

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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.