ConsumerLab.com Vitamin C Testing Suggests Misuse Of USP Claim
This article was originally published in The Tan Sheet
Executive Summary
Fifteen percent - or four - of 26 vitamin C supplements did not "pass" tests to determine whether they contain the claimed amount of the vitamin and if they sufficiently disintegrate in solution, according to ConsumerLab.com. The failure rate was about the same for products claiming to meet U.S. Pharmacopeia standards and those that did not.