Capsaicin, the primary ingredient in cayenne pepper (also the ingredient that gives peppers their trademark heat), works as a topical pain reliever, but it is also known as a metabolism booster and digestive aid. Cayenne pepper can provide that extra boost to your body’s metabolism.
Garcenia Cambodia contains hydroxyl citric acid similar to the citric acid in lemons and limes. Hydroxy citric acid turns up the body heat so we burn more fat.
Both can be found in a pill supplement in health food stores.