I was just checking out the herbal magic site and as their name suggests there seems to be a very strong emphasis on supplimentation. So I would be very skeptical. The only suppliment I used while using weight was a multivitamin.
Asides from the supplimentation, in their FAQ they mention that people lose between 2-7lbs a week... A healthy weight loss is usually considered 1% of your body weight or less or less than 2lbs a week.
Anyway I searched out some sites regarding this:
Another message board mentioned that to stay on program you have to shell out about $200-300 A MONTH on suppliments. That is also on top of your start up fees.
I also found a job posting for a weight loss coach and it mentions selling herbal products.
So anyway, I'd do my research and if you want some weight loss groups or support perhaps look at WL with a good track record (such as Weight Watchers) or a non-profit group like TOPS, or perhaps a consult dietician or a doctor-assisted WL program. At work there are a bucnh of ladies who have started their own weight loss group and work hard motivating each other so you could always get a weight loss buddy or buddies to help you on your way!