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. Vape Shops Are Selling 7 OH: The Dangers Behind the Counter FDA pushes for ban of potent Kratom derivative 7 OH amid safety concerns 6abc Philadelphia 7 Oh Disposable Vape PainCrusher Rx 7 Oh 2 Gram Disposable Vape Cloud Nine Shoppe 7 OH Withdrawal 7oh Kratom Smoke Tokz Vape Tokz 510 Battery Vaporizer LRADAC Health Alert: 7OH A Dangerous New Synthetic Drug A new synthetic substance called 7OH is raising concern among health officials. Here's what you need to know