How we scored it
Dried, ground root powder; purely mechanical processing, all atoms plant-derived → 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 by drying and grinding Dioscorea japonica (Japanese yam) roots. No synthetic route is involved.
In plain English
A fine powder made from dried, ground Japanese yam root, used to help condition skin. It is produced by simply drying and milling the root.
CosIng definition: Dioscorea Japonica Root Powder is the powder obtained from the dried, ground roots of Dioscorea japonica, Dioscoreaceae.
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.
- 2DIOSCOREA JAPONICA ROOT POWDER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3DIOSCOREA JAPONICA ROOT POWDER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=DIOSCOREA%20JAPONICA%20ROOT%20POWDER