Whey protein and whey hydrolysates yield some of the highest quality peptide-bonded amino acids available. Studies show that di- and tri-peptides are more rapidly assimilated and utilized by working muscle than either free form aminos or whole, intact proteins such as conventional whey protein powders. Universal Nutrition"s Amino 1900 fuels your muscles with peptide-bonded whey hydrolysates and comes enhanced with special digestive enzymes and Vitamin B6. When it comes to filling your muscular pipeline with valuable aminos to kick start protein synthesis, reduce protein catabolism, and improve nitrogen retention, Amino 1900 is the answer.