JUUL: Side effects and health risks It's not just vapor. Your vape could contain the same amount of nicotine as of 30 packs of cigarettes, plus other harmful chemicals. Want help quitting? SMCHDs next Nicotine Cessation Class starts St. This vaping device, called a JUUL, might look like a USB drive, but it contains nicotine and other harmful chemicals. Alarmingly, this easily hidden device and its enticing vapor flavors, like Juul disregarded early evidence it was hooking teens Under FDA pressure, Juul to halt sale of flavored e cigarette products in stores DYKOne Juul pod contains as much nicotine as a pack of cigarettes. Side effects include increased heart rate and blood pressure, lung disease, chronic bronchitis and insulin resistance leading to type 2