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. 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. Buy 7 O'Heaven 7 OH Kratom Vape Pen Fruit Punch 1g 100mg KratomGala.com Vape Shops Are Selling 7 OH: The Dangers Behind the Counter FDA Pushes to Classify 7 OH Sold in Vape Shops as Illicit Drug Ecigator Eighty8 50% 10 OH HHC Einweg Vape Pen 2ml (5 verschiedene Sorten verf Hamphavn