This is a 21-day cleanse. The Dr. Clark Kidney Cleanse helps lighten the load on your kidneys through a synergistic blend of herbs, vitamins and minerals traditionally used to cleanse and nurture the kidneys. The Dr. Clark Kidney Cleanse helps to support your body’s ability to maintain proper functioning of your kidneys.* The Kidney Cleanse contains a synergistic blend of natural herbs: Hydrangea Root, Marshmallow Root, Gravel Root, and Uva Ursi. These carefully selected herbs provide a natural cleansing action. By combining several different complementary herbs we greatly enhance each ingredient's effectiveness. This ensures that you receive all the health benefits you expect and deserve. This cleanse also contains Vitamin B6 and Magnesium Oxide to help you maintain healthy kidneys, and Freeze-Dried Parsley to help flush out toxins by increasing urine flow.* Why Cleanse Your Kidneys? We live in a toxic world. Every day harmful chemicals such as Malathion, butyl acetate, livestock hormones and nitrous oxide are polluting our bodies. If your kidneys did not remove these wastes, toxins would build up in the blood and damage your body. In this toxic world, it is easy for your kidneys to become overwhelmed and weakened due to exposure to common pollutants and invasive microorganisms. Obstructions can lodge anywhere in the urinary tract and kidneys, preventing the natural removal of toxins. The kidneys are sophisticated processing machines. Since the kidneys are essentially filters, it makes good sense to clean these filters with a periodic kidney cleanse. A proper diet, as well as a periodic kidney cleanse, is essential to the health of the kidneys.*