Delta-8 THC is a cannabinoid found in trace amounts in the cannabis plant. It is similar to the THC that causes a high—called delta-9 THC—but has much less potency. Delta-8 can be produced from hemp, which is legal to grow in the US since the passing of the 2018 Farm Bill, making the cannabinoid popular in states that don’t have legal cannabis laws. However, because delta-8 can still cause a high, it is in a legal gray area, and producers only sell it in certain states.