Do you know what's in a vape? Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Gasping for Action A Watchdog Report Lab tests reveal popular e cigarette liquids contain harmful chemicals Content and quantity of the chemical substances in e cigarette Download Table Electronic Cigarettes and Vaping: Factsheet Positive Choices The Danger of Chemicals Used in Vape Liquid The Science Blog