What's REALLY in your cigarette or vape? You're not just inhaling nicotine. Cigarettes contain arsenic, ammonia, and formaldehyde yes, the same stuff used to embalm bodies. Vapes? Heavy metals, toxic chemicals, E cigarettes can emit formaldehyde at high levels under conditions that have been reported to be non averse to users Scientific Reports La cigarette lectronique : Un danger quoi tu dois faire face Sant des jeunes Formaldehyde exposure from 3 e cigarette formats tested well below WHO quality guidelines EurekAlert! E cigarettes contain hazardous substances, addictive and harmful