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  • How are reviewers describing this item?
    great, good, calm, tried and different.
  • Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
  • Our engine has determined that the review content quality is low.
  • Our engine has analyzed and discovered that 75.0% of the reviews are reliable.
  • This product had a total of 45 reviews as of our last analysis date on Jan 18 2020.


Most positive reviewquestion

Great product sure helps me a lot for my anxiety!

Least positive reviewquestion

Not enough review data to provide meaningful insight.

Most authentic reviewquestion

This is a good product. I will continue to be a customerfor this product

Least authentic reviewquestion

This L Theanine calms my mind and helps me to sleep.It helps me when I have felt depressedI have use this for about 5 years... ...  Read More

Helpful Insights


    Posted by a reviewer on Amazon

    I am extremely msg sensitive, and the stuff is in everything, even so called natural foods, making it very hard to completely stay away from.

    Posted by a reviewer on Amazon

    Hello,i tried l-theanine for 3 weeks and i will explain what is the results.

    Posted by a reviewer on Amazon

    I hope my english is ok, i'm from switzerland and english is not my first language.

    Posted by a reviewer on Amazon

    And as expected, it didn't seem to do much when i was feeling just fine, but it produced very noticeable effects within the hour of taking it while under stress and feeling low of energy; suddenly i would notice my tired headache miraculously gone, lifted spirits, and clear thinking.

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