Let's talk about vaping! Swipe to learn more about what vaping is, why people choose to vape, its risks, and some harm reduction tips This post was designed and developed by What's in an e liquid or vape juice? The main ingredients are propylene glycol (PG) and vegetable glycerine (VG). These are solvents that are basically used to dissolve and carry the other ingredients. Propylene Glycol USP Grade 4_ounces PG vs. VG: What's the Difference? 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. PG vs VG Vape Juice Flavor Throat Hit Vapor Clouds Vape Mash India