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Is Aluminium Potassium Sulphate vegetarian?

Aluminium Potassium Sulphate

Vegetarian Vegetarian
Vegan Vegan

Aluminium Potassium Sulphate (potassium alum) is an inorganic salt used as a firming agent and stabiliser (E522) in food, and as an astringent and deodorant ingredient in cosmetics.

Also known as Alum, Aluminium potassium sulfate, Aluminum potassium bis(sulfate), Potash alum, Potassium alum, Potassium aluminium sulfate
INCI name Aluminium Potassium Sulphate
E number E522
INS number 522
EC number 233-141-3
CosIng ID 79432
Last reviewed 22 April 2026

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

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