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 Juul is back to its original mission with a second generation e cigarette JUUL & JUUL Pod Flavors Guide Vape Shack Juul E Cigarettes Face FDA Probe WSJ Juul is pulling teens' favorite flavor off shelves Juul Halts Online Sales of Some Flavored E Cigarettes WSJ