Vaping Causes Lung And Oral Cancer, Over 100 Studies Across The World Analysed WION FDA reverses order taking Juul vaping products off the market in US Evidence update on the cancer risk of vaping e cigarettes: A systematic review 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