For relaxation and calm without drowsiness Take in the evening as a sleep aid Each capsule provides 100mg L-theanine for flexible dosing Two capsules a day can be taken if needed Amino acid found naturally in green tea L-theanine - an amino acid found naturally in green tea and some types of mushrooms, that is believed to promote a sense of calm and relaxation. Theanine is thought to exert these effects by increasing levels of certain calming brain neurotransmitters, whilst lowering levels of stimulating "excitatory" neurotransmitters. Theanine has also been found to aid alphawave production in the brain which is associated with "wakeful relaxation" - calm without drowsiness - the same feeling you have when meditating or daydreaming. You may also find that Theanine is helpful for sleep - both falling asleep and improving sleep quality, due to an enhanced state of relaxation. Each vegan and vegetarian friendly capsule provides 100mg theanine. Product packaging may vary