Ah yesvaping studies saying they contain diacetyl. : r Vaping What's In Your Vape? Prevention Resources Inc Vapes don't produce harmless water vapor. They can contain addictive nicotine, cancer causing chemicals like acetaldehyde and formaldehyde, and heavy metals that don't belong in your body. Live Vape Free is a text BREAKTHROUGH NEWS: Doctors just announced that vaping has been conclusively linked to permanent lung disease. Sadly, many teens have already been diagnosed. Diacetyl, or 2,3 butanedione, is a flavouring agent that becomes a Understanding the Dangers of Vaping: Popcorn Lung and Diacetyl Risks A Warm, Buttery Flavor and a Risk of Irreversible Lung Damage