One product that fits under the category of synthetic cannabis, sometimes known as synthetic marijuana, is Bizarro herbal incense. Sprayed over dried plant material that can be smoked or vaporized, it is a blend of industrial chemicals. Unlike conventional plant-based cannabis, Bizarro and similar products use synthetic chemicals that can attach to the same cannabinoid receptors in the brain to mimic the effects of THC, the principal psychoactive ingredient in marijuana.