Vaping has been marketed as a healthier alternative to smoking. But, do you actually know what is in your vape? Turns out vapes contain heavy metals, cancer causing agents, and so many more Vaping exposes users to toxic metals like lead and uranium, study says The devices, popular among teens, emit lead, nickel and antimony at concentrations that may exceed cancer and neurological risk thresholds. Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA)