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
No cosmetic regulatory record; purine-thione derivative with potential pharmacological activity; requires full safety dossier (SCCS or CIR) before any cosmetic application
Frequently Asked Questions
Is Thioxanthine safe in cosmetics?
No cosmetic regulatory record; purine-thione derivative with potential pharmacological activity; requires full safety dossier (SCCS or CIR) before any cosmetic application The EU classifies Thioxanthine as "restricted". Safety rating: MODERATE.
Is Thioxanthine allowed in the EU?
Thioxanthine EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Thioxanthine do in cosmetics?
Thioxanthine functions as: Potentially antioxidant (thio-analogue of xanthine) — no confirmed cosmetic use. It is classified as a cosmetic ingredient in our database. CAS number: Not definitively assigned in CosIng.
What is the Margin of Safety for Thioxanthine?
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 Thioxanthine compliance across multiple jurisdictions:
Related Ingredients
Is Thioxanthine 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 Thioxanthine in your formulation.