E Cigarettes as Effective as Nicotine Patches in Smoking Cessation TIME.com a range of different e cigarettes that are used for vaping liquid with or without nicotine Stock Photo Alamy Nicotine found in e cigarettes labelled as 'nicotine free' The risks of smoking electronic cigarettes > Little Rock Air Force Base > Article Display Liquid nicotine used in e cigarettes still a danger to children despite recent decline in exposures