L-Theanine is an amino acid which can be found naturally in green tea. It has been shown to promote relaxation and a restful state without causing drowsiness or reducing alertness. It is suggested that L-Theanine can increase certain neurotransmitters and alpha waves produced by the brain which encourage a calming effect.

For many years people have consumed green teat due to its relaxing properties. L-Theanine is the active ingredient within green tea that helps to promote this feeling of relaxation and calmness.

What are the benefits?

L-Theanine has a number of beneficial effects including its ability to promote relaxation and a state of restfulness. Preliminary research suggests L-Theanine can also; support cardiovascular function, improve the ability to concentrate, reduce nervous agitation and also potentially lower blood pressure. It is also suggested that L-Theanine can promote muscular relaxation and encourage deep sleep.

It is suggested the calming effects are produced by increasing levels of GABA (gamma-amino-butyric acid) an important inhibitory neurotransmitter in the brain. GABA has been shown to reduce the feeling of excitability, restlessness and insomnia. L-Theanine may also increase levels of dopamine, another brain chemical which can enhance mood.

Although L-Theanine is found in green tea it does not contain caffeine which is often associated with 'edgy' and 'jittery' side effects. L-Theanine works to offset caffeine's hyper effect with a calming effect.