L-Glutamine is a non-essential amino acid which is known to have ability to cross blood-brain barrier. It plays a key role in relieving irritable bowel's syndrome and boosting immune cell activity in gut. This compound has chemical formula C5H10N2O3 with molar mass of 146.15 g/mol. It is also known to very important for synthesis of proteins & lipids, regulation of acid-base balance, and for promoting cellular energy. L-Glutamine is water soluble in nature and shows decomposition at temperature of about 185 degrees Celsius. It has shown positive effects on muscle gain and enhancement exercise performance.