Review of the Analytical Methods for and Clinical Impact of Additives and Flavors Used in Electronic Cigarettes Exposure and Health Springer Nature Link Vaping and the Brain: Effects of Electronic Cigarettes and E Liquid Substances The Journal of Neuropsychiatry and Clinical Neurosciences E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA Vaping is on the rise. While e cigarettes don't contain tobacco, they may still contain many of the same toxic and cancer causing chemicals found in regular cigarettes. This includes: Acrolein (weed