Oil
From Wiki Weed
It is extracted from hash through alcohol, CO2, or any other solvent extraction process and is often considered the most potent form of cannabis due to its high THC content. Oil can be consumed through dabbing, oral consumption, vaporization, or smoking. Oil is generally less popular than simply smoking weed or hash, because it involves a much more complicated procedure to produce. With the advent of legal marijuana markets, however, dispensaries and retail stores have made it significantly easier to obtain.
