BHT
AntioxidantPreservativeAlso known as: Butylated Hydroxytoluene, Dibutylhydroxytoluene, E321
A synthetic antioxidant used to prevent oxidation and rancidity in cosmetic products containing oils and fats.
Routine placement
Serum · AM
Time to results
4-8 weeks for brighter, more even-toned skin
Prevents product oxidation, extends shelf life of oil-containing products, antioxidant.
Present as a formulation ingredient at very low concentrations.
CIR-reviewed as safe at cosmetic concentrations. Effective antioxidant for product stability. Controversial in clean beauty.
Cautions
Controversial ingredient. Some animal studies suggest concerns at very high doses. Considered safe at cosmetic concentrations by CIR.
What does BHT do for skin?
BHT is used in skincare primarily as a antioxidant ingredient. Its effects depend on concentration and formulation. Check the benefits section above for specific details.
Is BHT safe for sensitive skin?
BHT is generally well-tolerated, but sensitivity varies by individual. Start with a patch test if you have reactive skin, and introduce gradually into your routine.
Can I use BHT every day?
For most skin types, daily use is appropriate at standard concentrations. If you experience any irritation, reduce frequency to every other day.
How long does BHT take to fade dark spots?
Most brightening ingredients take 8-12 weeks of consistent daily use to show visible improvement in hyperpigmentation. Results vary by skin tone and spot severity.
Does your skincare contain BHT?
Paste your product's ingredient list to check, or create your Skinularity ID for a full routine.
Find BHT products
Browse skincare products containing BHT.
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