Mangosteen (Garcinia mangostana Linn), regarded as the "Queen of Fruits," is native to the Malay Archipelago and Indonesia. Today it is abundantly grown in most wet, tropical regions of the Southeast Asia and beyond. For hundreds of years, the people of Southeast Asia have used mangosteen, especially the rind, to ward off and treat infections, reduce pain or control fever, and treat various other ailments. Xanthones and Tannins (polyphenols) are the main function ingredients of mangosteen. Scientific research showed that mangosteen contains more than 40 xanthones (Alpha-mangostin is a major component),- roughly 20% of about 200 xanthones found in nature. The Mangosteen is the single, most abundant source of xanthones known to science. Xanthones and Tannins can help fight and prevent cellular damage caused by free oxygen radicals. It is even more potent antioxidant than vitamins C and E, it can strengthen your body's immune system and improving your overall health. Thus it is wildly used in herbal cosmetics and pharmaceutical products.