Vaping & Cancer EDGE Vaping Vaping and Throat Cancer: What You Need to Know FDA warns Juul, says it marketed vapes as less harmful than regular cigarettes without agency authorization The Washington Post Vapes don't produce harmless water vapor. They can contain addictive nicotine, cancer causing chemicals like acetaldehyde and formaldehyde, as well as heavy metals that don't belong in your body. Live Vape Free is FDA plans to ban all Juul vape products