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 in E Liquids: Differences, Ratios & Guide IQOS EGYPT Do you know the differences between PG and VG vape juice? 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. Vape Juice Ingredients: What's Inside Your E Liquid? VITAE Glass