From the manufacturer

We believe that regardless of your current level of health, you deserve nutritional supplements that you can trust. You can rest easy knowing that our scientifically researched and formulated supplements are manufactured in the USA from high quality natural ingredients in a top-of-the-line, FDA registered facility using Good Manufacturing Practices (cGMP). Every batch is purity tested to ensure zero impurities or contamination. Every batch is tested to ensure zero impurities or contamination. You can trust that what is on the label is in the bottle and NOTHING ELSE!