Jarrow Formulas, Theanine 200, 200 mg, 60 Veggie Caps

An amino acid derivative A Unique Relaxant Prominent in Tea Supports Alpha-Wave Generation Tranquil relaxation w/o drowsiness Theanine has many health benefits. Theanine may help reduce the negative effects of stress, according to a small study published in Biological Psychology in 2007. In an experiment involving 12 people, researchers found theanine-treated participants were less likely to experience an increase in heart rate when performing a stressful task.