What is JUUL? 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. Juul vs Vuse: A Comparative Look at Leading Vaping Brands JUUL Pod Ingredients: What's in E Cigarettes? Big Vape' reporter talks lessons learned from Juul's rise, fall, and future The Examination Juul can continue to sell e cigarettes, FDA says