I purchased 6 sessions on Groupon. I have just completed all sessions, followed all instructions such as taking the supplements (I actually take more of the Niacin and fish oil than they require) and wearing the compression belt. I already follow a low-fat diet,  drink loads of water and fast-walk about an hour per day. I haven't lost a single inch. I am going back for my final measurements and pictures tomorrow. It will be interesting to hear their take on this. What is the guarantee? I am sure they will want me to purchase more sessions or join their weight loss center. By the way, I am very small framed and only about 3-4 inches over what I should be in th stomach area- however, I just can't seem to lose it.  All other body areas are within norm. WILL KEEP YOU INFORMED WHAT HAPPENS AT MEASUREMENT.