Nia pure organic soursop leaf powder is rich in antioxidants and many important nutrients. A tea made from this leaf powder can have a soothing, calming action, but also other health benefits. Soursop, also known as graviola or guanabana, is a tropical tree that has been valued for its delicious and nutritious fruit. The leaves have been used by many indigenous cultures and in folk medicine for centuries. Soursop leaves are rich in iron and provide many antioxidants, such as flavonoids, phytosterols, and tannins. Antioxidants play a role in your overall health and help to protect against a variety of health conditions.