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 age 25. Using nicotine in adolescence Vapes laced with spice drug sold to schoolchildren on Snapchat BBC News 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 Hidden dangers: Toxic metals found in popular disposable vapes SEATCA Vaping FAQs: Why do I feel sick after Vaping? Nicotine and Digestion: Does Nicotine Make You Poop? GoodRx