CheckVegan

Is Ammonium Bisulfite vegan?

Ammonium Bisulfite

Vegan Vegan
Vegetarian Vegetarian

Ammonium Bisulfite is an inorganic salt of ammonium and bisulfite, used as a reducing agent and preservative in various industries including cosmetics.

Also known as Ammonium hydrogensulphite
INCI name Ammonium Bisulfite
CAS number 7631-90-5
EC number 233-469-7
CosIng ID 31847
Last reviewed 9 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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