Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. Theanine induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. Theanine may support sensations of pleasure by affecting dopamine and serotonin neurotransmitters in the brain. Also, theanine may exert supportive effects on the brain by helping to maintain healthy metabolism of glutamate.Jarrow Formulas Theanine is made enzymatically from amino acids and is identical to the theDietary ConsiderationsWheat FreeDairy/ Milk FreeGluten FreeVegetarianSoy FreeVeganEgg FreeShellfish FreeNon-GMOFish FreeTree Nut FreePeanut FreeNSF CertifiedSuggested UseTake 1 capsule per day with water or juice on an empty stomach or as directed by your qualified healthcare professional.Serving Size:1 VCapServings Per Container:60Amount Per ServingL-Theanine200 mgOther Ingredients:Cellulose, magnesium stearate (vegetablesource), silicon dioxide, Capsule consists of hydroxypropylmethylcellulose.WarningsIf you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product. Keep out of the reach of children. Suitable for vegetarians/vegans. Store in a cool, dry place.