>>8471926They do work but you won't see a difference for about 2-3 months, it all depends how much body fat is on there. If you work out as well as use it and have a low fat diet you'd probably see results in about a month or less.
The key to a six pack is having a very small body fat percentage. When I got drunk last Friday I ordered a big pizza and kebab. For the next three days it wasn't as visible. It's really shit what all that fattening food does to your body, desu it's not worth it for the effort you put in.