Peruvian Bark, also known as cinchona bark, is derived from the bark of the cinchona tree, native to the Andean region of South America. It is historically significant for its high content of quinine, a compound used to treat malaria. The bark has been used for centuries by indigenous peoples for its medicinal properties. In addition to its use in treating malaria, Peruvian Bark has applications in herbal medicine and is sometimes used to alleviate fevers and digestive issues. Its discovery in the 17th century led to the development of quinine sulfate, which remains an important treatment for malaria today.