Base PG VG 1 Litre Fabriquer son Liquide de Cigarette Electronique AROMEA ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Learn about the risks of e cigarette and vape pen use from the Stanford REACH Lab. This social graphic was developed by the Stanford REACH Lab, a Stanford research lab focused on promoting Smoking BBC Bitesize