L-theanine, a unique amino acid compound found in green tea, is noted for its calming benefits.† Suntheanine® brand pure L-theanine is produced through a patented manufacturing process. Studies with Suntheanine® show it can stimulate alpha brain wave activity and promote relaxation without drowsiness.† Serving Size 1 Capsule Amount Per Capsule % Daily Value L-Theanine‡ 100 mg * * Daily value not established