BHT is graded C** (Moderate) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under Sephora Clean (Prohibited).
BHT
Safety grade: C**
BHT is a synthetic preservative and antioxidant compound that helps prevent oils and fats in cosmetic products from spoiling and going rancid. It also helps mask unpleasant odors that can develop in formulations.
BHT protects cosmetic products from oxidation and degradation, extending shelf life and maintaining product freshness, while also helping to neutralize or mask any off-putting smells.
Graded using: COSING, FDA.
- Sephora Clean — Prohibited
Last verified: May 26, 2026
Safer alternatives to BHT
- TOCOPHEROL — Grade A. Natural vitamin E that prevents product oxidation and rancidity like BHT.
- ASCORBIC ACID — Grade A. Vitamin C derivative that prevents oxidative degradation and extends shelf life.
- SODIUM ASCORBYL PHOSPHATE — Grade A. Stabilized vitamin C form that protects formulas from oxidation without synthetic concerns.
- CAMELLIA SINENSIS LEAF EXTRACT — Grade A. Green tea extract with antioxidant polyphenols that prevent product degradation.
Other Antioxidant ingredients
- TOCOPHERYL ACETATE — Grade A
- ASCORBYL PALMITATE — Grade A
- HYDROXYACETOPHENONE — Grade A
- PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE — Grade A