How we scored it
Mineral salt (MgCO3); Mg and carbonate both mineral-origin. No organic synthesis involved.
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
Obtained by mining magnesite ore or by precipitating magnesium carbonate from seawater/brine magnesium salts and carbon dioxide. Both routes are mineral in origin.
In plain English
A white mineral powder mined or precipitated from magnesium-rich brine. Absorbs oil and moisture, bulks out powders, and helps keep pressed products like eyeshadow from caking.
CosIng definition: Magnesium Carbonate is a basic dehydrated magnesium carbonate or a normal hydrated magnesium carbonate. To identify the colourant meeting the requirements for labelling purposes in the EU, the INCI Name CI 77713 must be used.
Structure
magnesium carbonate
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 Carbonate. PubChem CID 11029. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3MAGNESIUM CARBONATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4MAGNESIUM CARBONATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MAGNESIUM%20CARBONATE