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  • How are reviewers describing this item?
    good, great, tried and asleep.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 2.
  • Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
  • Our engine has analyzed and discovered that 58.8% of the reviews are reliable.
  • This product had a total of 680 reviews as of our last analysis date on Jul 24 2020.


Most positive reviewquestion

Love this product added to my Melatonin and 5HTP it's great!

Least positive reviewquestion

Not enough review data to provide meaningful insight.

Most authentic reviewquestion

I have fibromyalgia and for years I had trouble staying asleep. Glycine is not a magic bullet, it won't take care of all prob...  Read More

Least authentic reviewquestion

Makes me feel so sleepy and I don't need feel like that if I need the glycine benefits for me when is day time. Three at night ...  Read More

Helpful Insights


    Posted by a reviewer on Amazon

    I've tried every supplement under the sun for sleep, and none of them worked.

    Posted by a reviewer on Amazon

    Don't take my word for it.

    Posted by a reviewer on Amazon

    If you have sleep problems you know what a nightmare it can be.

    Posted by a reviewer on Amazon

    It is not a drug.

    Posted by a reviewer on Amazon

    I also take 1 mid-day, and if i happen to get very upset with someone.

    Posted by a reviewer on Amazon

    This is not a drug.

    Posted by a reviewer on Amazon

    I does not work too good for sleeping

Review Count History
Price History