The lab tested three lots of each brand, bought in New York-area stores ... Oddly, that was one of few tested products labeled "USP Verified," which indicates that the USP has tested and verified ...

To celebrate being named the #1 Doctor Recommended Professional Supplement Brand in the U.S. ★, Metagenics ... Third-party certifications, including USP GMP and NSF GMP, are paired with ...

Third-party certifications, including USP GMP and NSF GMP ... data from independent US survey showing which professional supplement brands are most recommended or sold by healthcare professionals.