How we scored it
Fe2O3 natural iron oxide mineral; formula and iupac consistent with description. Iron oxides are explicitly natural origin.
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
Mined from natural iron ore deposits and purified/micronised. Synthetic iron oxides also exist but hematite itself denotes the natural mineral.
In plain English
A natural iron oxide mineral used as a red-brown colorant in makeup. Mined and purified iron ore pigment.
CosIng definition: Hematite is a mineral consisting chiefly of iron oxide.
Structure
bis(iron(3+));tris(oxygen(2-))
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.
- 2Hematite. PubChem CID 14833. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3HEMATITE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4HEMATITE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HEMATITE