What it is
This ingredient is produced by hydrolyzing yeast to break its proteins and other components into smaller, soluble fragments such as peptides and amino acids. In sunscreen formulas it functions as a skin-conditioning agent and humectant, and its amino acids and other constituents can support a smooth, hydrated feel. It is typically used at modest levels as a functional botanical-type additive.
Safety & warnings
Hydrolyzed yeast extract is generally well tolerated. As a fermentation-derived protein hydrolysate, it carries a low theoretical risk of sensitization in sensitive individuals.
Origin & sourcing
Derived from yeast through fermentation and subsequent hydrolysis of the yeast cells.
Questions everyone asks
What is hydrolyzed yeast extract?
It is a yeast-derived mix of peptides, amino acids, and other small fragments made by hydrolyzing yeast cells.
Why is it added to sunscreen?
It serves as a skin-conditioning and humectant ingredient that helps leave skin feeling smooth and hydrated.