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fentanyl

CAS 437-38-7
5

Safety score · 0–100

Avoid

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

About

Fentanyl is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

Fentanyl (CAS 437-38-7) is a synthetic opioid approximately 80-100 times more potent than morphine, classified as a Schedule II controlled substance in most jurisdictions. It has no legitimate use in cosmetic or personal care products. The EU Cosmetics Regulation prohibits any pharmaceutical substances that could pose systemic toxicity risk through dermal absorption. Its presence in any cosmetic ingredient database entry is an anomaly—likely from a pharmaceutical rather than cosmetic context. Any product containing fentanyl would violate EU law.

Known concerns

  • EU Annex II banned substance
  • Potent opioid - severe systemic toxicity risk
  • Controlled substance in most jurisdictions

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.