How vaping harms your oral & overall health Smile Brilliant 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 Harmful Chemicals in Vapes and E Liquids You Should Avoid SMOKO E Cigarettes E cigarette flavorings may damage cilia production and function Harvard Gazette