Velatol is the highest and freshest quality available and held to rigid standards that are unparalleled. Here it goes-they are tested and verified through HPLC (High Pressure Liquid Chromatography), Gas Chromatography, Mass Spectrophotometry, Atomic Absorption and Flame Emission Spectrophotometry, Microbiological Laboratory cultures, Assays and Dissolution Testing, Initial Ingredient CA (Certificate of Analysis), and finally a third party independent velatol assay.