WASHINGTON — The Food and Drug Administration is allowing vaping brand Juul to keep its e-cigarettes on the market, providing relief to a company that has struggled for years after being widely blamed for sparking the teen vaping trend.

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.

The FDA decision applies to both tobacco- and menthol-flavored versions of the reusable product, which works with nicotine-filled cartridges sold in two different strengths. Juul previously discontinued several fruit and candy flavors that helped drive its popularity but were favored by teens.

Juul will be one of only two U.S. companies authorized to sell menthol-flavored vapes, which many adults prefer to tobacco flavor.

“This is an important milestone for the company and I think we made a scientifically sound case for the role that menthol can play in e-vapor,” Juul CEO K.C. Crosthwaite said.

— The Associated Press