"Detoxing" to lose weight is little more than a marketing gimmick. You're going to lose water weight because your body doesn't retain as much water if you're consuming more. It's not going to decrease fat content unless you're reducing calories consumed. There's little evidence that any safe or legal supplements have a noticeable effect on weight loss.
Even the mystical green coffee extract basically chalks up to the effects of caffeine, the same benefit you get from a cup of coffee.
http://www.dietpillswatchdog.com/bootea/
To put it in perspective - bodybuilders, people who aren't adverse to using illegal and illicit means to reach peak physical shape, often use ephedra and caffeine as a cutting agent. These stimulants are banned in most competitions due to their effectiveness and dangers in using them, and at high, dangerous doses are still only capable of shedding fractional amounts of weight, we're talking maybe 0.4 lb.s of body fat a week at the risk of a heart attack.
They use this coupled with cardio and clean dieting.
If anything truly worked better or safer, they'd be using it.
