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All Ingredients

gamma-glutamylethylamide

L-Theanine

L-theanine is an amino acid that is naturally present in green tea and black tea, as well as some types of mushrooms. While drinking green tea is one way to increase L-theanine in the diet, it is available as a supplement to deliver more precise, concentrated amounts. L-theanine may help reduce feelings of stress and anxiety when taken away from caffeine. In the presence of that stimulant – also naturally found in tea leaves – L-theanine works in synergy with caffeine to offer an energy boost without the jitters, crash or nervousness.

Health Benefits

  • With caffeine, helps deliver a balanced energy boost without the jitters or crash
  • Helps you ease into a more tranquil state
  • Tension-taming and a non-drowsy way to help stay centered

History & Traditional Use

L-Theanine

Modern Science & Research

According to a 2010 randomized controlled study published in the journal Nutritional Neuroscience, the combination of L-theanine and caffeine “significantly improved accuracy” when switching between tasks. The 44 participants reported feeling less tired and more alert.

According to a 2010 randomized controlled study published in the journal Nutritional Neuroscience, the combination of L-theanine and caffeine “significantly improved accuracy” when switching between tasks.

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References