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Ammonium Alum

INCI: AMMONIUM ALUM

Reviewed by Rosie · Last updated 18 Aug 2026

What Is Ammonium Alum?

Ammonium Alum (INCI: AMMONIUM ALUM) is a cosmetic ingredient listed in the EU CosIng inventory. Aluminum ammonium bis(sulfate).

Its declared cosmetic functions are antiperspirant and astringent.

Source: European Commission CosIng inventory.

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