Traditional medicines use leaves from the graviola tree, common in tropical forests, to treat conditions such as cancer and infections. Graviola's scientific name is annona muricata and, it's commonly called soursop, guanabana, Brazilian paw paw or custard apple.

The leaves of the graviola tree have powerful anti-cancer properties coming from phytochemicals in the plant.

In the mountains of Peru, the leaves of guanabana are brewed to treat inflamed mucus membranes or to facilitate the discharge of mucus from the nose, throat and lungs.

In the Amazon, locals use the leaves and roots of the plant to help regulate blood sugar for patients with diabetes.

Even in the West Indies, people drink tea made of Graviola leaves to treat cough, flu and asthma. 

Finally, You should consult your physician before using products containing graviola to have surely advice for your health.