To create THC-O, a highly-flammable compound called acetic anhydride is added to THC molecules. The process involves a series of extractions that begin with hemp, the low-THC cannabis plant that was made federally legal by Congress in the 2018 Farm Bill. First, CBD is extracted from raw hemp. Then, Delta-8 is extracted from the CBD. Finally, acetic anhydride is added to the Delta-8 molecules to make THC-O acetate. THC-O is believed to be roughly 3 times as potent as Delta-9-THC and 5 times more potent than Delta-8. THC-O is said to present a high similar to those of psychedelics and can help ease pain and stress, increase appetite, and support healthy sleeping habits.