Electronic cigarettes contain E-liquid which is warmed to produce vapour and then inhaled ecig wholesale E-liquid contains 5 ingredients: Nicotine Flavouring Water Propylene Glycol Vegetable Glycerol Propylene glycol and vegetable glycerol are two liquids approved for use in cosmetics, toiletries, food colourings, cake mixes, salad dressings, soft drinks and more. It’s also used in the smoke/fog machines in theatres and nightclubs. Propylene glycol has…