For that Buddha-like feeling! ZenMind offers a unique and natural way to promote relaxation without sedation. This formula contains a combination of L-theanine and GABA. L-theanine, found in green tea (Camellia sinensis), has been shown to stimulate the production of alpha-wave activity in the brain. Alpha-waves are involved in reducing abnormal apprehension fearfulness while increasing mental alertness and acuity. GABA is a major inhibitory neurotransmitter that is critical for normal brain function.