Muira puama is rainforest botanical traditionally used in South America to increase sexual desire, libido and performance. Raintree's double concentrated extract utilizes new technology to concentrate and preserve the active phytochemicals in this high quality Amazon plant. The active constituents in muira puama are a group of terpenes, phenols and a resin which are not soluble in water (or the stomach acid). Taking ground bark capsules will provide little or any benefit. Our research with this important rainforest plant has resulted in a proprietary extract which is unmatched in other products. Raintree's Muira Puama Concentrated Extract is processed with heat and high grade alcohol ensuring a product which is rich in soluble bioavailable active ingredients and provides the highest benefits possible.