Purchase a one pound package of Raintree's sustainably harvested boldo leaf powder (Peumus boldus) - rich in active and beneficial phytochemicals that occur naturally in this plant. Boldo has many biologically active chemicals. At least 17 alkaloids have been documented thus far, several of which are believed to be boldo's main active constituents. Much of the biological activity of the plant has been attributed to a single alkaloid called boldine.