Stress Management, Promotes Relaxation, Healthy Vascular Function, With Inositol, Non-GMO, A Dietary Supplement, Vegetarian/Vegan, Kosher, Amino Acids, Family Owned since 1968, GMP Quality Assured. L-Theanine is a unique amino acid found naturally in the tea plant (Camellia sinensis). L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive function. L-Theanine may also support healthy vascular function through this relaxing effect. Supports Cardiovascular Function, Promotes Relaxation, A Dietary Supplement, Vegetarian/Vegan.