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Fenthion (ISO)

CAS 55-38-9
5

Safety score · 0–100

Avoid

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

About

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

Fenthion is a non-cosmetic pesticide classified as an organophosphate acetylcholinesterase inhibitor. It is listed on EU Annex II (Regulation (EC) No 1223/2009) as a banned substance for cosmetic products. Any presence in a cosmetic formulation would constitute a serious regulatory violation.

Known concerns

  • Acetylcholinesterase inhibitor (neurotoxic)
  • Banned substance under EU Annex II
  • Not permitted in cosmetic products

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.