THC-B is a cannabinoid found in the cannabis plant.

THC-B, or tetrahydocannabutol, was first studied in 1942.

Unlike THC, it is non-psychoactive, meaning that it does not produce euphoric effects. Although research into THC-B is still limited, preliminary studies suggest that it may have anti-inflammatory, analgesic and appetite-regulating properties. It is attracting growing interest for its potential therapeutic effects, although further studies are needed to fully understand its effects and potential in the medical field.