What's in an E Cigarette? American Lung Association Revenue is down 90% since June for a metro Detroit company that's the second largest nicotine vape distributor in the U.S., thanks to new federal regulatory actions. The crackdown from the U.S. Food 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 Elevated Toxic Element Emissions from Popular Disposable E Cigarettes: Sources, Life Cycle, and Health Risks ACS Central Science Vape Residue May Harm Unborn Babies' Immune Systems Respiratory Therapy