How we scored it
Zinc oxide, natural mineral -> 1.0 (matches value)
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
CI 77947 is zinc oxide, produced from mined zinc ore or by refining and oxidising zinc metal. It is treated as natural mineral origin per ISO 16128.
In plain English
The colour index name for zinc oxide, a naturally occurring mineral also produced by refining zinc ore. Used as a white pigment and in mineral sunscreens for UV protection.
CosIng definition: CI 77947 is classed chemically as an inorganic colour (see also INCI: Zinc Oxide). It conforms to the formula:
Structure
zinc 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.
- 2CI 77947. PubChem CID 3007857. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3CI 77947. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4CI 77947. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2077947