How we scored it
Mineral compound mined or precipitated from natural magnesium sources → 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
Produced by mining the mineral brucite, or by precipitating magnesium from seawater or brine with lime. No petrochemical route exists for this inorganic mineral.
In plain English
A mineral ingredient, also known as milk of magnesia, used to absorb excess oil and buffer a formula's pH. Comes from naturally occurring magnesium minerals or is precipitated from seawater brine.
Structure
magnesium dihydroxide
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 Hydroxide. PubChem CID 73981. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3MAGNESIUM HYDROXIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4MAGNESIUM HYDROXIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MAGNESIUM%20HYDROXIDE