Parents: Have You Heard of 7 OH? A new substance called 7 OH ( 7 Hydroxymitragynine) is starting to appear in gas stations, vape shops, and online stores, and many people don't realize the risks. The Kratom Conundrum Comes to Outer Cape Cod The Provincetown Independent Doctors are warning about a substance they call gas station heroin that is available over the counter at vape stores across Arizona. The product is called 7 OH, a component derived from kratom. 7OH Vape: What You Need To Know Brooks Healing Center What to Know About 7 OH and Other "Gas Station Highs" LegitScript 7 Oh Mitragynine Vape Our team has removed 17,311 packages of isolated and or concentrated 7