INCI name

BHT

Butylated hydroxytoluene

A synthetic antioxidant.

What it is

BHT (butylated hydroxytoluene) is a synthetic antioxidant that protects oils and fragrances in a formula from going rancid.

Where it is used

Found in creams, lipsticks, make-up and products containing plant oils.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

Its use in cosmetics is subject to EU concentration limits; see the EU regulation section.

Functions

Antioxidant: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
Fragrance: Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.

EU regulation

EU · Annex III, entry 3252,6-Di-Tert-Butyl-4-Methylphenol

Product type: a) Mouthwash b) Toothpaste c) Other leave-on and rinse-off products
Maximum concentration: a) 0,001 % b) 0,1 % c) 0,8 %
As of: 3 November 2026 · (EU) 2022/2195

Products with this ingredient (1118)

Check a full ingredient list