Dabs are doses of cannabis concentrates that used to mostly refer to butane hash oil (or BHO), but has grown to include a variety of other concentrates such as wax, shatter, budder, or even “errl,” which is a playful meme-derived way of saying oil. These concentrates can be up to 80% THC, the active psychoactive compound in cannabis, but usually range between 50 and 75%.
More research is needed to determine exactly how much, but other compounds in cannabis, including other cannabinoids and terpenes, are also extracted in the process. The high concentration of THC, though, is most likely what’s behind the potent effects of dabs, making them the fastest, most efficient way to get really, really medicated.