The Brief Kratom remains legal in Minnesota, though the FDA warns of serious risks associated with its usage, including in over-the-counter products such as 7-OH. After lawmakers zeroed in on addiction concerns this past legislative session, the age to legally purchase—and the penalties associated with—the intoxicating substance kratom will rise in Minnesota beginning on Aug. 1. Previously in Minnesota, it was legal to sell kratom to those over 18 years old in Minnesota, though local governments have sought their own stricter ordinances. Big picture view:FOX 9 previously outlined the struggles one family faced after a woman had her son succumb to kratom addiction. What's next:Bills to classify kratom as a Schedule II substance requiring a prescription in Minnesota failed to gain approval during the previous legislative session, but could be revisited next year.