That stuff is crap. Honestly speaking in terms of supplements, clenbuterol, ECA stack, or adderall (do not condone any of these by the by) are the only ones that work in the way that weight-loss fads claim. Anything else is bullshitting yourself, though any stimulant will assist a little bit.
Rationally, less food and keeping up the activity level is the proper solution. You could add a pre-w/o such as N.O. or ferox if you are completely dragging, and it would be not significantly cost-prohibitive. Depends on your hunger / stimulant tolerance levels.
