Question: what are cbn and cbd?
Answer: Cannabis contains a number of cannabinoids, of which the most abundant are THC (D9-tetrahydrocannabinol), CBD (cannabidiol) and CBN (cannabinol). The active ingredient, which gets you high, is THC. In the plant, CBD is a precursor and CBN a metabolite of THC. As cannabis gets older, THC gradually breaks down to CBN.