Those at Therapeutic Research Center, Stockton, CA, have assigned both safety and effectiveness ratings for the natural ingredients contained in products after reviewing published research over the past decade.
They also utilized manufacturing quality data from adverse event reporting systems of the U.S. Pharmacopeia (USP) and various regulatory agencies.
The NMBER system rates each commercial product from 1 to 10, with lower numbers indicating potential safety concerns or quality problems. A higher number suggests research on a product has been generally positive.
There are 820 products that have been given a NMBER rating of "1." Only 250 products have received a "10."
About 250 new commercial products will be added to the Database each month.