New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results Latest Cochrane Review finds high certainty evidence that nicotine e cigarettes are more effective than traditional nicotine replacement therapy (NRT) in helping people quit smoking Cochrane Evidence update on the cancer risk of vaping e cigarettes: A systematic review