Made with the same graviola imported from Peru. Quality control in Europe: 100% supervised and guaranteed process. The graviola or soursop tablets are the result of subjecting the graviola leaves to a pulverizing process. Graviola is a powerful antioxidant that prevents cell aging. They are a powerful antioxidant, preventing and delaying the oxidation of molecules. Oxidative stress occurs when the body has low levels of antioxidants.