How we scored it
Filtrate of Pichia pastoris yeast fermentation medium; metabolites and residual nutrients are microbial or plant-derived and filtration adds no mass: 1.00.
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
Pichia pastoris yeast is grown in a sugar- or glycerol-based medium and the broth is filtered. Some processes induce growth on methanol, which the monograph does not rule out.
In plain English
A filtered liquid left after growing Pichia pastoris yeast in a nutrient broth, used to condition skin. It contains the yeast's natural by-products and comes from fermentation.
CosIng definition: Pichia Pastoris Ferment Filtrate is a filtrate of the product obtained by the fermentation of a growth media by the microorganism, Pichia pastoris
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.
- 2PICHIA PASTORIS FERMENT FILTRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3PICHIA PASTORIS FERMENT FILTRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PICHIA%20PASTORIS%20FERMENT%20FILTRATE