Natural Breakthrough for Urinary Tract Health More Potent than Cranberry Cranberry only contains a fraction of active ingredients, most of it is different inactive compounds such as fiber, acids, and other organic compounds. So with cranberry you never really know how much active ingredient you are actually getting. With ClearTract you get 100% active ingredients, which is why there is such a dramatic difference in taking ClearTract versus cranberry. Rapid Action When taken ClearTract reaches the bladder in about 30 minutes. Once there it goes to work quickly, customers often notice a difference in as little as 24hrs. Clinical History While this ingredient is new to the public, it has shared a safe and successful history with Jonathan V. Wright, MD who discovered it over 17 years ago.(Townsend Letter for Doctors) Doctor Recommended Leading practitioners of integrative medicine are now recommending d-mannose. Dr. Ronald Hoffman MD. Director of the Hoffman Center and host of the popular radio show Health Talk recommends it. Dr. Jacob Teitelbaum, director of the Center for CFS/FM therapies is another prominent supporter of d-mannose. In the News The popular health media have written about d-mannose and its effects, including articles in Let’s Live and Alternative Medicine Magazine. Research From the Weizmann Institute of Science confirms confirms that certain rare sugar compounds recognized by the bacteria can competitively block the adhesion to the bladder wall.