L-Theanine is a water soluble amino acid that is most commonly found in tea, specifically green and black tea and is one of the rare amino acids that is able to pass the blood-brain barrier in a relatively short period of time. This amino acid has been known to create a positive mindset and is said to promote a feeling of well-being and calmness, this amino acid could possibly be the reason that we all feel a little more positive and relaxed after consuming a cup or two of tea.
L-Theanine can also be found in supplement form and in much higher concentrated doses than you can ever get from consuming safe amounts of tea. The benefits of supplementing with L-Theanine are:
Helps and Heals the Liver
In a few studies, Theanine was found to assist the liver in detoxing and lowering the blood levels of alcohol. Theanine assists with the breakdown of acetaldehyde, a chemical that is formed when alcohol is broken down by the liver. Acetaldehyde is a toxic chemical and Theanine helps to breakdown and lower the toxicity of the chemical.
It also helps the liver heal itself from the damage caused by alcohol by helping to produce an incredibly powerful antioxidant known as Glutathione. This anti-oxidant is found in many vital organs within the body and has a number of benefits ranging from healing skin to fighting the effects of dangerous sources of toxicity such as chemotherapy.
Improves Brain Function
In dosages of 200-400mg daily, Theanine was found to have a very positive effect on brain function. It helped to improve memory recall, cognitive function, focus, ability to concentrate and helped treat anxiety by increasing the levels of dopamine and GABA within the brain. It is also helpful in relieving stress due to its ability to promote a sense of well-being and a state of calmness.
Taking 100-200mg of L-Theanine an hour before bed can help you fall asleep much faster and it can also help you to stay asleep. It improves the quality of sleep so you wake up feeling refreshed and energized. It does not have sedative properties, rather, it puts you in a calm restful mood and therefore, it is safe to use.