"HHC" - abbreviation for Hexahydrocannabinol - is over-the-counter while it has the same effects as THC, the active ingredient of cannabis. HHC is classified as a narcotic in several European countries, such as Finland, Estonia and Austria, but not yet in France.

There are nearly 150 cannabinoids, and for the moment according to the doctor, there is a legal vacuum that leaves doubt about HHC and its classification as a "drug" If the effects are little known scientifically, there are a number of undesirable side effects that have been reported.