Is Yeast Protein Hydrolyzate vegan?

Hydrolyzed Yeast Protein is also known as Yeast Protein Hydrolyzate.

Hydrolyzed Yeast Protein is a protein hydrolyzate obtained by acidic, alkaline, or enzymatic hydrolysis of Saccharomyces cerevisiae yeast, composed primarily of amino acids, peptides, and proteins. It is used as a skin- and hair-conditioning agent in cosmetics.

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