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, Sales of smart vapes e cigarettes with digital displays are rising in the United States. These devices are attractive to youth as they typically include flavored nicotine and may include features The Scary Truth About Teen Vaping How many cigarettes equal one vape?