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Pure Encapsulations


Item # W-PURLTH1

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For more information about L-Theanine by Pure Encapsulations, please contact us via phone at 800.472.4221 or Live Chat.

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L-Theanine Features

  • Green tea has been recognized for centuries as having relaxant properties.
  • L-Theanine, a unique amino acid derived from tea, provides the characteristic taste of green tea.
  • L-Theanine has also been discovered to be the biologically active constituent of green tea responsible for promoting relaxation.
  • In a preliminary nonclinical study, an L-Theanine solution enhanced alpha wave production in the occipital and parietal regions of the brains of volunteers.
  • These observed patterns are considered to be an index of relaxation.
  • Furthermore, it did so rapidly and without causing drowsiness.
  • In two additional studies, alpha waves were also shown to be detectable soon after L-Theanine administration.
  • L-Theanine is also useful for supporting healthy cellular function.
  • Preliminary research suggests that L-Theanine may be helpful for premenstrual support, including healthy attitude.
  • Furthermore, L-Theanine has been reported to moderate the effects of caffeine on the central nervous system.
  • L-Theanine's safety is supported in studies and by its long history of safe consumption in tea.
  • Pure Encapsulations L-Theanine is Suntheanine®, the brand that has been used in scientific studies.


Unit Of Measure:
120 Count, 60 Count
Please see the manufacturer's warranty for terms and conditions which are included with the product or can be viewed at the manufacturer's website.