How we scored it
Filtered liquid from lysed yeast: dissolved amino acids, peptides, sugars, nucleotides and minerals, all microbial material; filtration adds no 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 is grown in culture on sugar sources, lysed, and the solids are filtered off to leave a clear liquid. No petrochemical route exists; any preservative or carrier solvent is declared separately.
In plain English
The clear liquid left after yeast (Saccharomyces) cells are broken open and the solids filtered out. It carries the yeast's water-soluble amino acids, peptides, sugars and minerals and is used for hair conditioning and skin-protecting roles.
CosIng definition: Saccharomyces Lysate Filtrate is a filtrate of lysed Saccharomyces grown in culture.
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 FILTRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SACCHAROMYCES LYSATE FILTRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SACCHAROMYCES%20LYSATE%20FILTRATE