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Is 1,2,4-Trihydroxybenzene vegetarian?

1,2,4-Trihydroxybenzene

Vegetarian Vegetarian
Vegan Vegan

1,2,4-Trihydroxybenzene is a synthetic phenolic compound with three hydroxyl groups on a benzene ring, used as an antioxidant and hair colouring agent in cosmetics.

Also known as 1,2,4-Trihydroxybenzene (*) when used as a substance in hair and eyelash dye products. (*) From 3 September 2021 hair and eyelash dye products containing those substances shall not be placed on the Union market. From 3 June 2022 hair and eyelash dye products containing those substances shall not be made available on the Union market., Benzene-1,2,4-triol
INCI name 1,2,4-Trihydroxybenzene
CAS number 533-73-3
EC number 208-575-1
CosIng ID 31465
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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