DMT carts. DMT stands for dimethyltryptamine — it’s a powerful hallucinogenic compound found in a variety of plants and animals. Our own brains even make DMT — albeit in very small concentrations. It’s thought that DMT contributes to our ability to dream and may be involved with other aspects of conscious and unconscious thought.A DMT vape pen combines either N,N,DMT or 5-MeO-DMT with an e-liquid base. It’s then added to a standard vaporizer, just like the type you’ll find from cannabis manufacturers. In fact, you can even use DMT vape cartridges with any standard cartridge-style vape pens. These pens are often sold with cartridges containing CBD, THC, or nicotine. When the tank is empty, it’s removed, and a fresh new tank is screwed into its place.