The "e-juice" that fills e-cigarette cartridges usually contains nicotine (which is extracted from tobacco), propylene glycol, flavorings and other chemicals. Studies have found that even e-cigarettes ...

Vaping with nicotine can cause physical dependence and addiction. Nicotine is the substance responsible for cravings and withdrawal symptoms, which can make it hard to quit. Footnote 1 When inhaled, ...