CBD oil, which is increasingly being used to treat a variety of medical conditions, is a form of cannabis oil derived from marijuana or industrial hemp that contains significant amounts of cannabidiol, a molecule found in cannabis. Cannabinoids have a natural way of interacting with our bodies through receptors called endocannabinoids, which are present in all humans and animals. When introduced into the body, cannabinoids regulate cell growth, which in turn combats cancer, among other things.