Product description graviola annona muricata also known as soursop is a small evergreen tree that is native to the amazon rainforest and other tropical areas of the americas a number of active compounds have been identified in all main parts of the plant including the leaf bark root stem fruit and seed rio amazon graviola leaf capsules contain 500mg pure powdered graviola leaf and stem offering a convenient format contains no additives directions of use 2 4 capsules per day befo