Our 100% BEEF CONCENTRATE is a complete, hydrolyzed beef peptide protein manufactured from fresh beef raw material, a 100% natural product with no hormones used. It is an enzymatically hydrolyzed (virtually “predigested”) beef protein, which means that its digestion and absorption will be fast. A complete protein, such as ours, provides the body with all the necessary types of amino acids, including the 9 amino acids the body cannot synthesize and must be supplied by the diet (i.e. Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, Valine).