FDA Warns Juul Over Claims E Cigarette Safer Than Smoking CBS San Francisco What's the deal with JUULing? CORA Services What Happened to Juul? E Cigarette Maker Has Developed a High Tech Vape Business Insider INFOGRAPHIC: How Dangerous Are E Cigarette Ingredients? The FDA is allowing vaping brand Juul to keep its e cigarettes on the market. Studies from Juul show its e cigarettes are less harmful for adult smokers, who can benefit from switching completely