Harmful Chemicals in Vapes and E Liquids You Should Avoid SMOKO E Cigarettes Great question! Here's a clear comparison of smoking vs. vaping, especially in the context of surgical and skin health (like facelift outcomes): Smoking (Tobacco) WORSE overall Key Harms: New study reveals the worst e cigarette flavor to inhale and it's a popular one Former Juul exec alleges company shipped tainted products