Tackling Tobacco Tuesday! Did you know Many people think that vapes contain harmless water vapour? They actually emit an aerosol made up of toxic particles. The liquid used in vapes, known as ' vape juice without propylene glycol 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. Does Vape Liquid Expire? Shelf Life, Storage, and Safety Explained It's NOT just water vapor. Vaping exposes your lungs to harmful chemicals and can affect your overall health. This Vaping Awareness Month, get the facts and free support to quit. Text READY PG vs. VG: What's the Difference?