How we scored it
Fermentation product plus a natural mineral ion (iron); this site's convention = 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 fermenting a nutrient substrate with Saccharomyces yeast in the presence of iron salts. No synthetic route exists; the process is inherently biological.
In plain English
A skin-conditioning ingredient made by fermenting yeast together with iron minerals. It's a natural fermentation product used to deliver trace minerals to skin.
CosIng definition: Saccharomyces/Iron Ferment is the product obtained by the fermentation of Saccharomyces in the presence of iron ions
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.
- 2SACCHAROMYCES/IRON FERMENT. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SACCHAROMYCES/IRON FERMENT. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SACCHAROMYCES/IRON%20FERMENT