L-Carnitine, 2000MG devided into two doses per day. For every 30 days supplementing with L-Carnitine, take a 1 week off break.
Carnitine is mainly used to transport Fatty acids into cells and the Mitochondria. and also (to some degree) increases the rate of which the liver "oxidizes" fats.
Among other things it has been shown (to one level or another) Raise HDL,Lower Blood Triglycerides. over all it is wise to use in when trying to loose weight.
However Do not go and expect to loose weight just by popping a pill, Yes it will help you loose weight and faster at that(to some degree), but its only as affective as your diet and work ethic.