Juul took a page from Big Tobacco to revolutionize vaping Los Angeles Times Vape, Juul, e cigarettes and the FDA: Everything you need to know Juul claimed its e cigs are 'totally safe,' but the case against vaping keeps building MarketWatch JUUL Design Life Cycle JUUL: Side effects and health risks 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.