Tesa helps break down fat in the midsection but diet and exercise still need to be part of it. Core workouts are preferred when the goal is the mid area. A typical five days on and two off schedule is recommended.
I've used Reta in the past and noticed zero side effects, though my hair has thinned and I hope that isn't related. I still carry some stubborn body fat in spots that I've heard Tesa targets, especially visceral areas. Looking for thoughts from others before deciding.