Database/Antiperspirant/Ammonium Alum
100% natural origin · ISO 16128

Is Ammonium Alum natural?

Yes. Aluminium-ammonium sulfate dodecahydrate; the metal ion, sulfate and crystallisation water are all mineral, natural-origin.

INCI nameAmmonium Alum
CAS7784-25-0
FormulaAlH28NO20S2 · 453.3 Da
FunctionAntiperspirant · Astringent
FeedstockMined or crystallised as the mineral salt aluminium…

How we scored it

Inorganic double-sulfate mineral salt: aluminium, ammonium, sulfate and water of hydration are all natural. 100% natural.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Mined or crystallised as the mineral salt aluminium ammonium sulfate dodecahydrate. All constituent ions and the water of crystallisation are natural-origin minerals.

In plain English

A naturally occurring mineral salt of aluminium and ammonium sulfate, also known as tschermigite. Used in deodorants and antiperspirants as an astringent that helps close pores and reduce sweat and odour.

CosIng definition: Ammonium Alum is an inorganic salt

Structure

2D structure of Ammonium Alum

aluminum;azanium;disulfate;dodecahydrate

PubChem CID 62668 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Ammonium Alum. PubChem CID 62668. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3AMMONIUM ALUM. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4AMMONIUM ALUM. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=AMMONIUM%20ALUM