Hydrolyzed Yeast Extract is a yeast-derived conditioning ingredient that can supply peptides, amino acids and other soluble components.
Clinical cosmetic research with Saccharomyces-derived extracts has reported improvements in skin moisture and surface microrelief, although results depend strongly on the specific yeast extract and formula. It is better classified as a bioactive conditioning ingredient than as simple texture support.
Usage & cautions
Usually well tolerated; use the finished product as directed.
Information approach
Consumer-friendly summaries are informed by established cosmetic ingredient references such as INCIDecoder and Paula’s Choice Ingredient Dictionary, while avoiding turning ingredient-level evidence into medical claims about the finished product.
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