TummyZen is a new and better approach to the heartburn relief. Based on groundbreaking new RandD from Yale University, TummyZen's patented method uses Zinc salts to regulate acidity, combined with calcium carbonate to give you relief for your occasional heartburn that is fast acting, long lasting, and supports your stomach's natural protection from acid, your stomach lining. It's a combination that no other heartburn product can offer, and something we call Total Heartburn Relief. Here's how TummyZen gives you Total Heartburn Relief: Works Fast (not in hours or days), to provide relief by quickly neutralizing excess acid Keeps working for hours (not just a few minutes) for long lasting relief Supports your stomach lining by regulating acidity and has the lasting protection of zinc TummyZen is a heartburn product that works and is good for your stomach. It does everything you want, and instead of having negative side effects, nothing that you don't.