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Prohibited Substance

pentagestrone

CAS 7001-56-1 Updated
3

Safety score · 0–100

Avoid

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

About

A synthetic progestin steroid hormone. Banned in EU cosmetics under Annex II because all sex hormones — including progestins — are categorically prohibited in personal-care products.

Skin benefits

  • Not a cosmetic ingredient

Known concerns

  • EU Annex II prohibited
  • Endocrine-active progestin
  • Pharmaceutical-only
  • No legitimate cosmetic use

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 — always read the physical product label and consult a healthcare professional for personal concerns.