Promotes Relaxation. Supports Learning Ability. Neurologically Active Amino Acid. Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. Theanine induces relaxation without causing drowsiness as measured by increased generation of alpha-waves. Theanine may improve learning ability and sensations of pleasure by affecting dopamine and serotonin neurotransmitters in the brain. Also Theanine exerts protective effects on the brain by mitigating glutamate toxicity. Jarrow FORMULAS Theanine is 100% L-theanine made enzymatically from amino acids and is identical to the theanine found in green tea.
"I read that L-Theanine can promote better sleep. What I've noticed most nights is that if I awaken in the middle of the night, I'm able to turn over and go right back to sleep. Therefore, I sleep longer and feel more refreshed in the morning upon rising. It also seems to work better when taken on an empty stomach as w/ most amino acids. Jarrow is a good brand of products."