How we scored it
MgO + Al2O3 + SiO2 are all minerals or mineral-derived; no organic atoms; 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
Made by precipitating sodium silicate with magnesium and aluminium salts, or from natural clay minerals. No petrochemical input is involved.
In plain English
A mineral powder of magnesium, aluminium and silicon oxides that soaks up oil and moisture, prevents caking and adds bulk or opacity. It is made from mineral silicates and metal salts, with no carbon-based raw materials.
CosIng definition: Magnesium Aluminometasilicate is the inorganic compound consisting of varying amounts of magnesium oxide, aluminum oxide and silica.
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.
- 2MAGNESIUM ALUMINOMETASILICATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3MAGNESIUM ALUMINOMETASILICATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MAGNESIUM%20ALUMINOMETASILICATE