The hemp plant, domesticated 6000 years ago in China, produces more than 400 organic compounds. The two main groups of molecules with bioactive properties found in hemp are terpenes and cannabinoids - CBD being a molecule of the latter.
Cannabinoids are compounds that can influence functioning of the human nervous system.
The hemp plant biosynthesizes more than 60 of them. The major cannabinoids are THC, CBD, CBG and they differ in their chemical structure and action.
Cannabidiol, or CBD, is one of the most abundant cannabinoids found in hemp. CBD is thought to have many therapeutic applications and helps to unwind. While beneficial for wellbeing, CBD doesn’t have the psychoactive properties of its more famous cousin THC, and should not be confused for THC.
World Health Organisation - Report on CBD - Nov. 2017