How Juul went from a $38 billion darling to uncertain future and FDA investigation Leading Health and Medical Groups Campaign for Tobacco Free Kids Juul gets FDA's OK to keep selling tobacco and menthol e cigarettes CNN Safe smoking alternative e cigarette revealed as dangerous and addictive 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