While e cigarettes, or vapes, may contain fewer chemicals than regular cigarettes, they are still NOT safe. E cigarettes contain harmful chemicals. 99% of e cigarettes contain nicotine, making them highly addictive. Visit https: t.co 1y8cZxtgFQ to Regular and electronic cigarettes: what are the differences? Education smoke and steam systems in comparison, normal cigarette, tobacco heater with sticks and e cigarette with liquid on a brown table, copy space, selected Stock Photo Alamy Electronic Cigarettes, What is the bottom line? Most e cigarettes (vapes) contain nicotinethe addictive drug in regular cigarettes, cigars, and other tobacco products. Nicotine can harm the adolescent brain which continues developing until about