CBD Vape Oil in Chicago. Naturally flavored with hemp terpenes, this is one of the smoother vape oils out there, containing no MCT oil, PG (Propylene Glycol), or VG (Vegetable Glycerin). Our full spectrum vape CBD oil is extracted via supercritical CO2. Supercritical CO2 extraction can help preserve terpenes and may be used directly in cartridges. It also leaves no residual solvents. The advantage of vaporizing full spectrum oil over higher potency distillate is the former incorporates more plant terpenes and minor cannabinoids into consumption.