The nicotine in 1 vape can equal 50 cigarettes. Depending on the size of the vape and nicotine strength, it can be much higher. Nicotine can harm the developing brain, affecting 4 Different Types of E Cigs (Complete Guide) E Cigs Advice Are E Cigarettes the Right Choice? SiOWfa15: Science in Our World: Certainty and Controversy 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 E cigarettes more helpful than nicotine replacement treatments for dependent smokers Queen Mary University of London