Has anyone used the waste sweat bands and have it work for them? In helping them lose belly fat? I have a friend that told me she used saran wrap while she did her exercises and it helped her lose her stomach quicker. She was trying to lose her weight from having her first child. And now she is back to her normal size. Just curious if anyone else has used one and gotten good results from it. Feedback would be greatly appreciated... I'm trying to lose about 20 to 30 pounds. I'm putting in the effort of cardio and strength exercises. And watching my calorie intake as well.