While e cigarettes have become more and more popular these days, there are still questions about the safety of these nicotine devices. Since they are so new, and no long-term testing has been conducted on their repeated use, the jury is still out on whether e cigarettes can be defined as safe. But considering there are only four ingredients in e cigs, and there is no tar and tobacco like you find in regular cigarettes and no carcinogens, one can definitely call e cigs safer than their traditional counterparts.