Amino 21 is a supplement with a high quality amino acid formula to support brain function and muscle metabolism.* Amino 21 is a scientifically formulated combination of 21 crystalline, free-form amino acids in the natural L-configuration. It provides all the necessary “building blocks” for the production of body proteins.* Because free-form amino acids are readily bioavailable and require no digestion by the body, they can be absorbed efficiently into the bloodstream and accompanying tissues where they are used for cellular regeneration.* Protein is one of the most important elements for the maintenance of good health and vitality and is of primary importance in the growth and development of all body tissues including muscles, blood, skin, hair, nails, bone and internal organs. Hormones, enzymes and antibodies are all formed from protein. Amino 21 is not produced from predigested or hydrolyzed protein. Each crystalline free-form amino acid is formulated separately. Amino acids in protein form require specific enzymes to break them down into individual amino acids. If free form amino acids are not available to make the necessary digestive enzymes, the body is not able to break down protein into the necessary free amino acids. Ingredients: Glutamic Acid, L-Glutamine, L-Taurine, L-Aspartic Acid, L-Glycine, L-Lysine HCl, L-Phenylalanine, Tyrosine, L-Arginine, L-Cystine, L-Leucine, L-Methionine, L-Alanine, L-Serine, L-Threonine, L-Citrulline, L-Valine, L-Histidine HCl, L-Isoleucine, L-Ornithine HCl, L-Proline Since 1973, DaVinci Laboratories has been a leader in nutritional research, product development and innovation. Our dedication to higher integrity, and insistence on superior quality are reflections of our core values. Our team of experts is always willing to assist you in matters relating to nutrition. Today, DaVinci continues to set new standards for quality and product innovation to keep you as healthy and informed as possible.