Products were analyzed for their indexed vitamins and minerals using USP (United States Pharmacopeia) and AOAC methods for Oil- and Water-soluble Vitamins. Analyses for minerals and lead were performed using Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) methodology. The analyses were conducted in independent laboratories to which the identities of the products were not disclosed.
Disintegration of non-chewable, non-capsule, non-enteric coated and non-time release formulations was analyzed by ConsumerLab.com utilizing USP <2040>.
Products failing to meet any Passing Score for any of the analyses conducted were re-tested in a second independent laboratory using similar methods and instrumentation.
ConsumerLab.com may modify or use other appropriate test methods if necessary to test special product formulations.
Passing Score: *
To achieve a "Pass" in the testing, a product had to:
A "Pass" was based on meeting the above criteria in either the first or second rounds of testing.
* Passing scores allow for specific margins of technical error associated with each analysis. ConsumerLab.com reserves the right to disqualify a product at any time from passing its testing if it considers such product to present a safety risk or to provide misleading or inaccurate information in its labeling.
** Based on State of California's Prop 65 lead limit. California requires supplements exceeding this limit to bear a warning label regarding lead.