Source Naturals, Serene Science, L-Theanine, 200 mg, 60 Capsules

Made with Suntheanine®Focused RelaxationDietary SupplementNon GMO Validated L-Theanine is an amino acid that preliminary evidence suggests may help ease some psychological and physical aspects of normal everyday stress, including occasional anxiety and tension. Human studies have shown that taking L-theanine affects the emission of alpha waves in the brain associated with sates of relaxation and focused attention. Preliminary research has shown that L-theanine crosses the blood brain barrier, and suggests that it may support healthy neurotransmitter levels in the brain, and inhibit the stimulatory properties of caffeine.