By law, the FDA does not approve dietary supplements. However, they do regulate both dietary supplements and dietary ingredients. We follow what the FDA established for dietary supplements in 2007 called "current Good Manufacturing Practice" (cGMP). These regulations require that each batch of our vitamins is tested for identity, purity, strength, and composition, so we can be sure that what’s on the label is what’s in our vitamins and supplements. We also use a test each batch for heavy metals, microbes, allergens, gluten, and other contaminants, ensuring they are below levels deemed safe by the cGMP.