Regulation stacks up for e cigarettes Nature Nicotine use among young people is evolving. New research shows more youth are using multiple nicotine products at the same timemost commonly cigarettes and e cigarettes, with a growing rise in combining vapes IQOS (heated tobacco) replaces vaping as the next cigarette alternative Bridge Michigan Differences between smoking alternatives like vape & e cig vs cigarettes Common ecigarette (ecig) products and associated toxins. Download Scientific Diagram