L-Theanine is a unique amino acid found almost exclusively in the green tea plant (Camellia sinensis) and is the primary ingredient contributing to the unusual taste of green tea. Animal studies have shown that L-Theanine crosses the blood brain barrier, increases dopamine and GABA levels in the brain, and inhibits the stimulatory properties of caffeine. Human studies have shown that taking L-Theanine results in the emission of brain waves associated with a state of relaxation. L-Theanine exerts beneficial effects on brain metabolism and induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. L-Theanine is also scientifically shown to support healthy blood pressure levels that are already within normal range.
L Theanine
CAS Number: 3081-61-6
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L Theanine
- L-Theanine is known for its ability to promote relaxation without causing sedation. It crosses the blood-brain barrier and exerts psychoactive effects by increasing levels of certain neurotransmitters, including gamma-aminobutyric acid (GABA), serotonin, and dopamine.
- L-Theanine may support sleep quality by promoting relaxation and reducing anxiety before bedtime. It may improve sleep onset latency and increase overall sleep duration without causing morning grogginess.
- Some preliminary research suggests that L-Theanine may have cardiovascular benefits, including lowering blood pressure and reducing the risk of cardiovascular disease. However, more studies are needed to confirm these effects.
