The Truths Behind Vaping: Information for Youth and Teens USU Most people don't realize how much nicotine is packed into a single vape. Flavors and smooth hits can make it feel harmless, which is why so many young people struggle to Did You Know? One Geek Bar vape contains 800 mg of nicotinethat's the same as 40 packs of cigarettes. Nicotine at these levels can: Harm brain development in youth Vape Juice Nicotine, Calories and Cigarettes Vape UK