It is arguably one of the most pure forms of solvent extracted hash. It contains the psychoactive THC as well as other useful cannabinoids used for numerous medical conditions. Most of the THC found in hash oil is absorbed and catalyzed within a few seconds of entry into the body hence its high psychoactive effects. Hash oil can be consumed by ingestion or smoking and vaporization through a technique called dabbing. Hash is derived from the term hashish.