We use the pericarps of the mangosteen in our tea and it has shown that the pericarp contains xanthone, an organic chemical compound that is said to help prevent cancer, helps reduce inflammation and helps reduce bacteria in the body. Mangosteen is also an immune system booster and is rich in antioxidants. The tea can also help lower sugar levels as well as cholesterol and is perfect for people who have diabetes.. It is conveniently packaged that you need not boil the tea anymore. Simply add hot water to the tea and consume.