Formaldehyde In Vapes Is It A Concern? E LIQUIDS UK 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 Formaldehyde Is in Vapes & Preserves Dead Frogs No Matter the Taste #VapesDown formaldehyde? was that always in our ejuice ,or was it just added ? : r Vaping Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports