Is Aluminum Sulfate vegan?

Aluminum Sulfate

Vegan

Aluminum sulfate is an inorganic salt produced by reacting aluminum hydroxide (derived from bauxite) with sulfuric acid. It is used in water purification, paper manufacturing, and as an astringent in cosmetics. Its origin is mineral-derived.

Also known as Alum, Aluminium Sulfate, Aluminium Sulphate, Filter Alum
E number E520
CAS number 10043-01-3
EC number 233-135-0
Last reviewed 16 April 2026

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.