Why would you not want to lose as much weight as possible for your hard efforts? Malabar tamarind is a tropical fruit native to Southeast Asia and India, it has been used as a flavoring for curries as well as a preservative. It contains the active compound, called hydroxycitric acid (HCA). It has been studied for its effects on fat and sugar metabolism. Our Metabolism Plus Topical Patch also contains fucoxanthin (brown seaweed), pomegranate oil (punicic seed extract), and African mango seed extract.