How we scored it
Broken-open yeast cells: proteins, peptides, amino acids, sugars, nucleotides, lipids and minerals, all microbial material. Lysis leaves no added mass. Natural 1.0 / total 1.0 = 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
Saccharomyces (baker's or brewer's yeast) is grown by fermentation on sugar sources such as molasses or cereal, then lysed by enzymes, heat or mechanical rupture. No petrochemical route exists; any carrier solvent is declared separately.
In plain English
The contents of yeast (Saccharomyces) cells, released by deliberately breaking the cells open, so it holds amino acids, small proteins, sugars and minerals from the yeast. It is used in skin products for conditioning. The yeast is grown on sugar-rich raw materials such as molasses.
CosIng definition: Saccharomyces Lysate is the end product of the controlled lysis of various species of Saccharomyces
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 LYSATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SACCHAROMYCES LYSATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SACCHAROMYCES%20LYSATE