Research so far shows that legal e cigarettes are far less harmful than smoking, and can be an effective way of helping people who smoke to quit. However, there isn't enough research yet 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 E Cigarette effects on oral health: A molecular perspective ScienceDirect Is vaping the most powerful weapon we have against lung cancer? Cancer Prevention and Screening Blog E cigarettes: 'cancer risk close to zero' Bhekisisa E cigarette marketing in the UK