Amating Formulas' Melatonin Plus L-Theanine is a unique blend of two ingredients that helps relax your mind and gently drift to sleep* Melatonin is a hormone that naturally occurs in the pineal gland." At night, higher tea sof melatonin is held by the body to induce and maintain sleep. "It may help falling asteep faster and staying asleep all night." L-Theanine is a relaxing and non-dietary amino acid found in tea leaves. L-Theanine helps to regulate aspects of brain function in humans.*