What Nicotine Strength Should I Vape? UK Guide (0mg20mg) Public The amount of nicotine in an e cigarette can vary greatly. Youth may intake nicotine levels that are equivalent to multiple packs of cigarettes. To learn more about the highly addictive E Cigarettes: Risks, Research and Challenges Springer Nature Link Johns Hopkins Medicine Team Proposes Ways to Regulate and Better Manage E Cigarette Use Johns Hopkins Medicine