What it is
Saccharomyces Polypeptides are the polypeptide (protein and peptide) components obtained from Saccharomyces yeast. These yeast-derived peptides are used in cosmetics as conditioning agents that help support a soft, hydrated skin feel. They are generally included at low concentrations as part of a formula's conditioning system.
Safety & warnings
Yeast-derived peptides are generally well tolerated at cosmetic use levels. As with other protein-containing botanical or microbial ingredients, occasional sensitivity is possible, so a patch test is reasonable for reactive skin. It is not considered a notable comedogen.
Origin & sourcing
Biotechnological. The polypeptides are derived from cultured Saccharomyces yeast and isolated from the yeast material.
Questions everyone asks
What are Saccharomyces Polypeptides?
They are peptide and protein fractions obtained from Saccharomyces yeast and used to condition the skin.
Do they protect against UV light?
No. They are a conditioning ingredient with no UV-filtering role.