FDA regulators said Thursday that Juul’s studies show its e-cigarettes are less harmful for adult smokers, who can benefit from switching completely to vaping.

Officials with the Food and Drug Administration have approved the continued sales of tobacco-flavored e-cigarettes and refill cartridges by Juul Labs.

The U.S. Food and Drug Administration has authorized the sale of Juul Labs' e-cigarette device and refill cartridges in tobacco and menthol flavors, after years of struggle with heightened regulatory scrutiny,