Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
CRITICAL: Banned in EU cosmetics (Annex II) . Classified as a pesticide active substance under EU Regulation. Reproductive toxicity concerns. Not a viable cosmetic ingredient in any major market. Do NOT formulate
Regulatory Flags
Frequently Asked Questions
Is Thiabendazole safe in cosmetics?
CRITICAL: Banned in EU cosmetics (Annex II) . Classified as a pesticide active substance under EU Regulation. Reproductive toxicity concerns. Not a viable cosmetic ingredient in any major market. Do NOT formulate The EU classifies Thiabendazole as "prohibited". Safety rating: POOR.
Is Thiabendazole allowed in the EU?
Thiabendazole EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does Thiabendazole do in cosmetics?
Thiabendazole functions as: Preservative, antifungal agent (benzimidazole fungicide). It is classified as a cosmetic ingredient in our database. CAS number: 148-79-8.
What is the Margin of Safety for Thiabendazole?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
Check Thiabendazole compliance across multiple jurisdictions:
Related Ingredients
Is Thiabendazole in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Thiabendazole in your formulation.