Banisteriopsis Caapi is one of the two main ingredients of a traditional and visionary medicinal brew from the Amazon region, the  active substances of this climbing plant are found inside the root of freshly cut stems. Banisteriopsis Caapi acts as an MAO inhibitor. This means that it prevents certain chemicals from being destroyed by the human brain, such as psilocybin from magical fungi and DMT from plants mimosa hostilis, psychotria viridis and phalaris arundinacea and fungal tryptamines.