How we scored it
Filtrate of fungal fermentation (pullulan, other microbial metabolites, residual sugar-based medium): fermentation products are natural origin. 1.00 x 100% = 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
Dominant route is submerged fermentation of a sugar-based medium by the black yeast Aureobasidium pullulans, followed by filtration. The exact growth medium is not specified in CosIng, so a sugar and mineral medium is assumed.
In plain English
The filtered liquid left after the black yeast Aureobasidium pullulans has been grown on a nutrient medium. It typically contains pullulan, a sugar-based polymer, plus other yeast by-products. It is listed as a humectant, skin-conditioning and skin-protecting ingredient.
CosIng definition: Aureobasidium Pullulans Ferment Filtrate is a filtrate of the product obtained by the fermentation of a growth media by Aureobasidium pullulans, Dothioraceae.
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.
- 2AUREOBASIDIUM PULLULANS FERMENT FILTRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3AUREOBASIDIUM PULLULANS FERMENT FILTRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=AUREOBASIDIUM%20PULLULANS%20FERMENT%20FILTRATE