I received the product on may 24 and on june 02, I noticed a difference already with myself. I do not wear it all day long. I wear the belt a few hours a day, because I am not too sure on what it will do to the organs and bones. I noticed an arch on my back now, giving me more of a booty and a flatter belly. I am 5'3 weighing 165 and got a large. At first, I thought it was a bit small because i didnt get the first layer to wrap over each other a lot, but luckily my belly did flatten and i have nSee full review