I want to gain Muscle, and lose fat quickly...?

I need some kind of supliment that will help me, on top of a healthy diet and regular excercise lose 3 stone of fat, and gain about 2 stone of muscle. I'm not interested in "Gain 1 million lbs of muscle in 2 days" scams, I'm aware of the hard work and dedication involved and when i say im looking for something to speed up the proccess, im talking about something that will "optimize" the proccess, so it will be as fast as possible, anyone have any decent suggestions, i know protein powder is a good one, any others?