THC-O's appeal lies in it's potency and legal status. Research shows that it's roughly 3x stronger than conventional THC. It has been called "the psychedelic cannabinoid" for its borderline hallucinatory effects. THC-0 products are becoming increasingly popular in the states where consumers don't have access to state-licensed delta-9 THC products. THC-0 is protected under the farm bill passed by Congress in 2018, because the molecule was derived from a chain of custody that began with federally legal hemp plants.