50g powdered Mimosa Hostilis root bark. Also known as Jurema Preta, Tepezcohuite and Mimosa Tenuiflora (MHRB). We powder our own root bark to ensure it is 100% pure and organic root bark and not trunk bark. Although, we sometimes offer trunk bark at lower rates but we always specify when we do. We can also ship from Brazil at lower rates, but most people prefer to buy directly in the USA to avoid having the product go through customs.