Nicotine, propylene glycol, sweet flavorings, and various toxic chemicals like carcinogens and heavy metals are found in vape juice, posing health risks, especially to youth. What Ingredients Does Vape Juice Contain? What Ingredients Should You Look for in Vape Juice? AstroVape 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. Vape Juice Recipes Require Patience Freeman Vape What Actually Goes Into E Liquid? Breaking Down the Ingredients Vapeology