THCP, or tetrahydrocannabiphorol, is a rare cannabinoid that was discovered in 2019 and is found in trace amounts in the cannabis plant. It is structurally similar to delta-9 THC, the main active component of cannabis, but with the pentyl side chain extended to heptyl, making it more potent than THC. THCP is a psychoactive cannabinoid with a stronger affinity for the CB1 receptor than THC or THCA. It has a reported binding affinity of 1.2nM at CB1, approximately 33 times that of Delta-9-THC (40nM at CB1) . THCP is still new to the world of cannabis, and no studies currently exist outside of the observations made by the original team that discovered the cannabinoid. While its high potency and potential benefits make it an interesting compound for researchers and cannabis enthusiasts, the lack of comprehensive studies and legal ambiguity warrant caution. THCP is federally legal in the US as long as it is derived from hemp and its THC levels don’t exceed 0.3% .