Pure HIGH-DH Hydrolyzed Whey Protein: Hydrolysis is the natural intestinal process of breaking down whole proteins found in food and supplements into smaller proteins called peptides and amino acids. DH is the Degree of Hydrolysis which indicates the extent to which the protein has been broken down Higher DH means more rapid and complete absorption. In order to be absorbed protein must be hydrolyzed down to amino acids or to the smallest peptides called di and tripeptides. Whole proteins including whey isolates concentrates caseins soy and blends are large proteins and naturally contain little to no smaller peptides and no di and tripeptides. Power Crunchs Proto Whey® is 100% Micro Peptides of which up to 40% are di and tripeptides