Study Finds E Cigs Produce More Formaldehyde Than Regular Cigarettes 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, Do E Cigarettes Contain Formaldehyde? VapeMountain.com Is Formaldehyde In Cigarettes Clearing The Air: Do Vapes Still Contain Formaldehyde Cigarettes Vs Vape Australia E cigarettes emit very high formaldehyde levels only in conditions that are aversive to users: A replication study under verified realistic use conditions ScienceDirect