Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. E cigs and vaping: Q&A Are JUULs actually safe? Facts and fiction about vaping The Current Juul can continue selling e cigarettes as FDA says vaping benefits outweigh risks PBS News Q&A: Is vaping as addictive as cigarettes? MultiCare Vitals