How is your diet. I'm not talking like a diet where you eat less and stuff ilike that. I mean general diet. Make sure you getting enough protein, carbs, and fats. That's the biggest part of weight loss. I know that's not the answer you want to hear so I'll answer it.
The best products I've used before are Controlled Labs REDuction, Animal Cuts, Lean Xtreme, and Lipodrene W/ephedra extract. I've used Hydroxycut which did work for a while, but I got used to it fast and it didnt' work anymore. Don't waste your much on Lipo6x.
I recommend going to Bodybuilding.com and asking their opinion. When I try new supps I always look at the reviews and stuff on the forums. For your BF I know that those pills will be safe, but for women I would check into them and see if their ok to take for you.
Oh, forgot to say. Check into the weight loss program called P90X. It works, I've used and and many other people I know have used it and it works.