How we scored it
Microbial fermentation extract filtrate: metabolites and cell components are biologically derived, so 1.0. Fermentation products score 1.0; growth medium not stated in CosIng.
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
Rhodococcus is grown by submerged fermentation and the broth is extracted and filtered. The carbon source is not stated in CosIng, so confirming a conventional sugar-type medium with the supplier is worthwhile.
In plain English
A filtered extract from a fermentation of Rhodococcus bacteria, used as a skin-conditioning ingredient. It comes from a microbial culture grown on a nutrient medium; the exact strain and medium depend on the supplier.
CosIng definition: Rhodococcus Ferment Extract Filtrate is a filtrate of an extract of the product of the fermentation of the microorganism, Rhodococcus.
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.
- 2RHODOCOCCUS FERMENT EXTRACT FILTRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3RHODOCOCCUS FERMENT EXTRACT FILTRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=RHODOCOCCUS%20FERMENT%20EXTRACT%20FILTRATE