The research looked at the chemical composition of "vape smoke" and assessed its cancer risk using data from published animal studies. Read more Does vaping cause cancer? Roseburg Community Cancer Center Many people believe that vaping is less harmful than smoking, but that's a common misconception. In fact, in addition to nicotine, vapes can contain toxic chemicals that could be linked to cancer, E Cigarettes and Vaping OHSU French watchdog flags heart, lung and cancer risks as vape use grows RFI Teens inhale cancer causing chemicals in e cigarettes