Colloidal Minerals is formulated with bioavailable, plant-derived colloidal minerals. These water-soluble minerals are collected from prehistoric plant deposits found in Utah. Each serving of Colloidal Minerals helps replenish the body with trace amounts of a full spectrum of naturally-occurring macro- and trace minerals so it can function properly. These colloidal minerals were formed thousands of years ago when they were absorbed into the plants and vegetation of that era that helped to nourish the life that was able to thrive on this planet.