Glutamine

Amino acids, often referred to as protein building blocks, are compounds that perform many critical roles in your body. Amino Acids in Muscle Building formulas often contains L-Citrulline (Or Citrulline Malate), BCAA, Glutamine, Ornithine Alpha-Ketoglutarate, Arginine Alpha-Ketoglutarate and D-Aspartic Acid.