Zyn and the retailers who sell the product have run afoul of regulators in recent years. The FDA in April of last year warned 119 retailers to stop selling Zyn to underage people, and the company was ordered to pay $1.2 million last year for violating Washington, D.C.’s smokeless tobacco ban.

FDA authorizes Zyn nicotine pouches, citing public health benefits for adult smokers, despite concerns over flavored products' appeal to teens.

The FDA said "an extensive scientific review" found the products were found to pose lower risks of cancer and other serious health conditions compared to cigarettes and smokeless tobacco products.