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. MYTH : There's only THC or nicotine in the juice of my vape, no other harmful chemicals. FACT : Vapes are an aerosol. Certain chemicals have to be in any Does Vape Juice Expire? How to Tell, Shelf Life, & Storage Vape Juice Ingredients: All You Need to Know Next Generation Cigarettes Market Size, Growth Trends 2035 What's actually inside that vape? Vaping devices don't just deliver flavor or a quick escapethey introduce a mix of chemicals, metals, and addictive substances into the body. Many believe they're just harmless