True Nutrition's Hydrolyzed Whey Protein is a high quality protein produced by a controlled enzyme treatment of whey protein, which provides amino acids, peptides, and polypeptides. The whey protein base material is highly nutritious. Since the enzyme treatment is a mild and carefully monitored process, the essential amino acids remain intact and the protein retains its high nutritional quality. The Hydrolyzed Whey Protein has undergone the highest degree of hydrolysis of any of our current hydrolyzed whey proteins for the highest concentration of di- and tri-peptides. As a result, this material will be extremely bitter. What makes the Hydrolyzed Whey Protein Ultra Grade different than all other forms of hydrolyzed protein? The material is sourced from cows that are not administered hormones or antibiotics, and it is entirely soy-free!!