Theanine 100 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 antagonizing glutamate toxicity.