Butane Hash Oil, or BHO as many call it, is a marijuana extract that is super potent concentrate. By extracting THC and other present cannabinoids using a solvent like butane or carbon dioxide, then evaporating away the butane leaves only the resin which looks like a syrupy, amber-colored, waxy substance. We recommend that you go easy with concentrates. Concentrates can be some of the most potent way to consume marijuana. We recommend that you go slow when you first start consuming.