Ingredients
Propylene glycol: A common food additive that's also used in antifreeze, paint solvent, and artificial smoke 
Vegetable glycerine: A food additive that's considered safe for human consumption 
Nicotine: A highly addictive chemical that mimics the effects of tobacco smoking 
Flavorings: Food grade flavorings that are used to flavor sweets, drinks, and snacks 
Water: May be present in some e-liquids