As a natural phytochemical found in japanese green tea, l-theanine is a non-essential amino acid that is present in the brain.** a close relative of glutamate, studies indicate that l-theanine interacts with the neurotransmitter, gaba (gammaminobutyrate).** gaba, known for its importance in nervous system functioning, works with the mood centers of the brain.** studies in japan show that l-theanine helps support the body
s ability to deal with pms and occasional, everyday anxiety.**dose: 2 capsules daily, preferably on an empty stomach.