Antioxidant ingredient
BHT
A synthetic phenolic antioxidant that prevents oxidation of oils and fats in cosmetic formulas, used at very low concentrations.
Also known as: butylated hydroxytoluene
antioxidantpreservative-booster
Benefits
- ✓Prevents oxidative rancidity in oils and fats
- ✓Extends formula shelf life
Watch for
- ⚠Possible sensitization at high concentrations
- ⚠Moderate EWG hazard score; ongoing discussion around potential endocrine activity based primarily on high-dose oral data
- ⚠Used at very low concentrations in cosmetics (0.0002–0.5%); CIR and SCCS consider safe at permitted levels
