This product seemed to work, did have some upper GI discomfort after taking it and abdominal cramps. It's the fine print that gets you. Advertised as a free trial only to pay shipping, $ 3.95 , but if you don't respond after you receive the product the company automatically charges for the next bottle and has it on it's way. Nothing in your sample explains this. When you call the number for customer service which is in mountain time, someone will answer eventually and explain about the fine print on the web advertisement. They do promise to cancel your future orders and credit your charge...read full review »