this vape liquid can kill you if you get it on your skin apparently : r mildlyinteresting Do you know what you're vaping? Propylene glycol (PG) and vegetable glycerin (VG) are the main liquids in vapes. When heated, these chemicals turn toxic and aren't safe to breathe. What Does Vaping Do to Your Lungs? Johns Hopkins Medicine E Cigarettes and Vaping OHSU Understanding Vaping: Can It Cause Sickness? Vaping: The Good, the Bad and the Popcorn Lung MPH Online