THIOXANTHINE is graded A (Safe) by Expert·ING, based on COSING regulatory data.
THIOXANTHINE
Safety grade: A
Thioxanthine is a chemical compound that acts as a protective agent in cosmetic products. It helps prevent damage to hair and product ingredients from oxidation, which is a natural process that can degrade quality over time.
This ingredient protects cosmetic formulations and hair from oxidative damage while also helping to condition and soften hair strands.
Graded using: COSING.
Last verified: May 26, 2026
Other Antioxidant ingredients
- TOCOPHEROL — Grade A
- TOCOPHERYL ACETATE — Grade A
- BHT — Grade C**
- ASCORBYL PALMITATE — Grade A
- HYDROXYACETOPHENONE — Grade A
- PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE — Grade A
- ASCORBIC ACID — Grade A
- CAMELLIA SINENSIS LEAF EXTRACT — Grade A