L-theanine - the brain booster

More power and concentration with L-theanine


Ultra posse nemo obligatory.
Nobody is obliged to achieve the impossible.

In the western world, the performance principle applies. The willingness and ability to perform is very important for school and later professional success. It is therefore not surprising that more and more people are striving to improve their performance, especially in terms of concentration and stamina.
An inexpensive and effective brain booster is the substance caffeine, which is consumed by millions of people every day to increase alertness and concentration. Caffeine is usually added to the body through the consumption of coffee or green tea. Green tea is famous for its mildly stimulating effect, its pleasant taste and its beneficial relaxing effect.

These two properties of green tea - activation and relaxation - can be attributed to a certain substance contained in green tea. This psychoactive substance, which is still largely unknown to the public, is the amino acid L-theanine. Lately, however, this amino acid has been coming more and more into the focus of science. L-theanine has a stimulating effect similar to caffeine without exhibiting its harmful side effects.

Is L-theaninenow the natural successor to caffeine? Currently on everyone's lips as a miracle cure for tiredness and lack of concentration, which is not addictive and has no side effects?

We did some research and tell you what this amino acid is all about.

What is L-theanine?

L-theanine (5-N-ethyl-L-glutamine) is a non-proteinogenic, psychoactive amino acid that works in the central nervous system. Especially in combination with caffeine, theanine has a stimulating and concentration-promoting effect, but at the same time has a mentally relaxing effect.

Where does L-theanine occur?

Theanine occurs in higher concentrations in the leaves of the tea plant (Camellis sinensis). Theanine can make up around 1 to 2 percent of the dry weight of the tea leaves. This amino acid is preferably consumed in hot drinks such as green or black tea.

Who is L-theanine suitable for?

Theanine is particularly suitable for mental workers who often have to work concentrated for long periods of time. But this brain booster is also enjoying increasing popularity in the gamer scene.

Effects that are said to be theanine

  • Increase in concentration and alertness
  • Mental relaxation and calming down
  • Decrease in nervous irritation
  • Reduction of stress
  • Improving the quality of sleep
  • No side effects


High-dose L-theanine tablets

L-Theanine 500mg - 180 vegan tablets - Highly dosed - lasts for 6 months


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You want to increase your concentration and attention span. You have already had positive experiences with caffeine, but you want to avoid its unpleasant side effects. Then L-theanine can help you to take you to the next level.