Pau darco is an herb known by many names. The reason for this is simple: it was a deeply prized herb known by many of the indigenous tribes of South America. They were well aware of pau darcos numerous health benefits and used for health problems.
Pau darco bark has many active principles, mainly lapachol, quercetin, and other flavonoids. Once the pau darco inner bark is dried and shredded, it can be made into a tea which has a slight bitter or sour taste and is brownish-coloured.