Why does USP utilize its own laboratories to test products?
Unlike pharmaceutical drugs with single active components, dietary supplements may contain several dietary ingredients, or might be botanical products that are extremely complex in chemical composition. Proper knowledge, skill, and experience are essential to ensure that accurate results are obtained. USP scientists have extensive experience in evaluating both drug and dietary supplement products. USP has multiple stages of test data review to provide added assurance that the test results and interpretations are accurate.