Glycerin Vape Style Pipe BDD Wholesale Pipe Smoking Accessories 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. E Liquid Considerations: VG vs PG ePuffer Vape Canada Blog Ironic Vape Bar Glycerin Hand Pipe DankGeek What's in a vape anyway? Find out for Day 3 of #NDAFW, and learn more about resources on campus to help students cut back or quit vaping! To schedule a BASICS appointment