How we scored it
Mineral iron oxide pigment, no organic or petrochemical fragment present. 100% mineral mass → 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 from iron salts (often from steel-pickling liquor or ore) precipitated to iron oxide/oxyhydroxide pigment. No alternative route changes its mineral classification.
In plain English
A mineral-based pigment used to colour cosmetics, made from iron oxide. It comes from processed iron ore or recycled iron salts and gives products natural earthy tones.
CosIng definition: CI 77492 is classed chemically as an inorganic colour. It consists chiefly of hydrated ferrous oxide that conforms to the formula:
Structure
iron(3+);oxygen(2-);hydroxide;hydrate
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.
- 2CI 77492. PubChem CID 23320441. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3CI 77492. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4CI 77492. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2077492