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  • How are reviewers describing this item?
    good, tried and few.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 450.
  • Previous analysis of this listing was an C grade.
  • 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 66.2% of the reviews are reliable.
  • This product had a total of 698 reviews as of our last analysis date on Jan 19 2020.


Most positive reviewquestion

I liked it very muchIt improved my memory recall a lotI recommend Prevagen to help my memory retain my history

Least positive reviewquestion

Not enough review data to provide meaningful insight.

Most authentic reviewquestion

Been using this fir3 months now and I really notice a difference. I gad been suffering from brain fog due to a tumor even thoug...  Read More

Least authentic reviewquestion

Just started with product need longer time to see if it is working.

Helpful Insights


    Posted by a reviewer on Amazon

    Didn’t really help my memory or concentration

    Posted by a reviewer on Amazon

    Tried a bottle for her & in days it was very noticable, plus when she stopped.

    Posted by a reviewer on Amazon

    It made a positive difference even though he was in pretty bad shape by then.

    Posted by a reviewer on Amazon

    Their web site said this would be a substitute.

    Posted by a reviewer on Amazon

    I bought this when i could no longer get the dog of cat version of neutricks.

Review Count History
Price History