ZenMind GABA & L-Theanine 60 caps from NutriCologyZenMind For that Buddha like feeling! 200 mg of Zen 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 anxiety while increasing mental alertness and acuity. GABA is a major inhibitory neurotransmitter that