I always look at the ingredients of these pills since often they contain the same ingredients. This one had some things I never heard of (except for the caffeine of course) and I looked up "Irvingia Gabonensis" and it says here
Some research suggests that Irvingia gabonensis seeds might also affect fat cells, which might reduce fat cell growth and increase the breakdown of fats.
hmmm.. I wonder if it works... I guess if it did it would be more well known. You can buy this in pill form on it's own.