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  • How are reviewers describing this item?
    good, great, easy, low and small.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 10.
  • 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 71.3% of the reviews are reliable.
  • This product had a total of 240 reviews as of our last analysis date on Nov 7 2019.


Most positive reviewquestion

A good source of the D3 vitamin - it is becoming more & more topical in health circles that D3 -or lack thereof - is a cause of...  Read More

Least positive reviewquestion

Not enough review data to provide meaningful insight.

Most authentic reviewquestion

My former doctor, before moving, had a vitamin shop. The D3 that she prescribed and sold me had the exact same #s as this. Not ...  Read More

Least authentic reviewquestion

works wnoders

Helpful Insights


    Posted by a reviewer on Amazon

    This product is not readily availabe in the cvs or walgreen's; so the 2-3 day delivery is good.

    Posted by a reviewer on Amazon

    Made three complete meas in the first five days of ownership.

    Posted by a reviewer on Amazon

    Purchase bio tech d3-5 at the request of my physician.

Review Count History
Price History