Historically, the berries have been used for medicinal purposes by the indigenous people of the rainforests. Because the berries are so sour they were rarely eaten raw. Rather, they would be used in preparing other foods, and in the present, they are used in making jams and jellies as well as desserts.
Camu camu, being an intensely potent botanical source of vitamin C, as well as a tremendous source of amino acids and minerals, is believed by many to be effective in treating a wide range of problems, including shingles, cold sores, ginigivitis, osteoarthritis, diabetes, chronic fatigue and depression. South Americans have used camu camu successfully in treating Herpes Simplex and Eppstein-Barr viruses, thanks to the high vitamin C content which helps counteract stress that causes flare-ups. Rainforest peoples even make a hair tonic, to repair split ends and restore shine!