What are the harmful ingredients in Juul pods? Flavour chemicals, synthetic coolants and pulegone in popular mint flavoured and menthol flavoured e cigarettes Tobacco Control JUUL Pods Menthol 3% 4pk TGR NOW Smoke Vape Delivery Los Angeles FDA approves Juul's tobacco and menthol e cigarettes Reuters 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