How we scored it
Al3+ is mineral; isostearate, laurate and stearate are fatty acids from vegetable oil; every fragment n = 1, so the mass fraction is 1.00.
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
Fatty acids from palm, palm kernel or coconut oil, with isostearic acid made by isomerising oleic acid, are reacted with an aluminium source to form the mixed soap. No alternative route applies, though isostearic and stearic acid can also be tallow-derived.
In plain English
A mixed aluminium soap of isostearic, lauric and stearic fatty acids. It thickens oils, stops powders from caking, adds opacity and helps stabilise emulsions in make-up and stick products.
CosIng definition: Isostearic, lauric, stearic acids mixture, aluminum salt
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.
- 2ALUMINUM ISOSTEARATES/LAURATES/STEARATES. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3ALUMINUM ISOSTEARATES/LAURATES/STEARATES. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ALUMINUM%20ISOSTEARATES/LAURATES/STEARATES