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THIABENDAZOLE

CAS 148-79-8
35

Safety score · 0–100

Caution

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

About

THIABENDAZOLE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

Thiabendazole (CAS 148-79-8) is a benzimidazole-class fungicide and anthelmintic agent historically used in agriculture, veterinary medicine, and some topical pharmaceutical preparations for fungal infections. Its use in cosmetic products is extremely limited due to toxicological concerns including potential reproductive effects observed at high doses in animal studies. Under EU Regulation (EC) No 1223/2009, thiabendazole is not specifically listed in Annex II (banned) or Annex III (restricted), but its primary authorization is as a pesticide rather than a cosmetic ingredient. The compound presents environmental hazard concerns (aquatic toxicity) that are inconsistent with modern green cosmetic formulations.

Known concerns

  • Pesticide/fungicide with toxicity profile
  • Potential reproductive concerns at high doses
  • Aquatic environmental hazard
  • Primarily an agricultural biocide, not a cosmetic ingredient

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.