Study: E cigarettes are 95 per cent less harmful than tobacco India Today Which Smoking Habit Puts You Most at Risk? E Cigarettes Vaping with Juul & Other Electronic Cigarettes Vaping is on the rise. While e cigarettes don't contain tobacco, they may still contain many of the same toxic and cancer causing chemicals found in regular cigarettes. This includes: Acrolein (weed Growth in e cigarette use hasn't led young people to think smoking is ' normal' News Cardiff University E cigarette Vaping Q&A Allegro Pediatrics