Cited skincare — peer-reviewed evidence, no upsell.
Bh

BHT

BHT · Butylated HydroxytolueneAntioxidant

A synthetic antioxidant used in tiny amounts to stop the oils in a formula from going rancid — it protects the product, not the skin.

What it does

BHT is a long-established antioxidant added at very low levels to keep oils and other oxidation-prone ingredients from spoiling on the shelf. Think of it as a preservative for the formula's fats. While it is an antioxidant, its role here is product stability rather than a skin benefit, and the amounts used are minute.

Also known as

butylated hydroxytoluene

This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
Want more like this?
Get Drop, free. Every flag cites its source, the app tells you when your routine is complete, and it helps you simplify — instead of selling you more products.