How we scored it
Polysaccharide hydrolysed from yeast cell walls; this site's method hydrolysate/fermentation 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
Extracted from the cell walls of yeast (typically Saccharomyces cerevisiae) via hydrolysis. A biological extraction process with no petrochemical route.
In plain English
A film-forming, skin-conditioning ingredient extracted from yeast cell walls. It's produced by breaking down natural yeast through hydrolysis, not by chemical synthesis.
CosIng definition: Yeast Beta-Glucan is a carbohydrate fraction obtained from the hydrolysis of Yeast
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.
- 2YEAST BETA-GLUCAN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3YEAST BETA-GLUCAN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=YEAST%20BETA-GLUCAN