Purchasing THC and CBD e-liquids is permitted in numerous states. E-liquids and other marijuana-related products are prohibited in some states. Is Purchasing THC and CBD E-Liquids Legal? If you are vaping CBD for the first time, it is best to start with a low dose and then slowly increase it until you reach your desired dosage. It is legal to buy CBD and THC e-liquids in many states. Make sure...