Vape Juice Vape Dojo 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. Understanding Vape Juice Ingredients in the UK: What's in Your Vape? Cue Vapor How Long Does Vape Juice Last? Shelf Life, Tips & Expiry Signs Vape Juice 101: What's in E Liquid and How It Works Kraze Vape