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. The Essentials Vaping Information, Solutions & Interventions Toolkit Stanford Medicine Gasping for Action A Watchdog Report Lab tests reveal popular e cigarette liquids contain harmful chemicals Banned Dangerous Vape Ingredients to Avoid in Your Vape Juice