L-Theanine is an amino acid that is found in a variety of plant and mushroom species, and is particularly abundant in green tea. L-Theanine is commonly referred to as simply Theanine, not to be confused with D-Theanine. L-Theanine possesses a unique savory, umami flavor profile and is often used to reduce the bitterness in some foods. L-Theanine may have calming effects for mood and sleep and may support brain function and aid alertness, focus, cognition, and memory.* L-Theanine may also fortify immune function and support the heart and cardiovascular system.** These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.