Your Body Immediately After Vaping an E Cigarette While e cigarettes, or vapes, may contain fewer chemicals than regular cigarettes, they are still NOT safe. E cigarettes contain harmful chemicals. 99% of e cigarettes contain nicotine, making them highly addictive. Visit https: t.co 1y8cZxtgFQ to E Cigarettes and Vaping OHSU Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab An explosive issue E cigarettes and burn risk 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