How we scored it
AlK(SO4)2; aluminium, potassium and sulfate all natural mineral counter-ions => 1.0
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
Potassium Alum is produced by mining and purifying the naturally occurring alum mineral, or by combining aluminium sulfate with potassium sulfate from mineral feedstocks. Either route is mineral in origin.
In plain English
A naturally occurring mineral salt used as an astringent, for example in traditional deodorant crystals.
CosIng definition: Potassium Alum is the inorganic salt
Structure
aluminum;potassium;disulfate
References
- 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.
- 2Potassium Alum. PubChem CID 24856. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3POTASSIUM ALUM. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4POTASSIUM ALUM. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POTASSIUM%20ALUM