Everyone should beware of the dangers of 7 OH. Thank you, Montana Attorney General Austin Knudsen, for sounding the alarm. 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. 7 O'Heaven 7 OH Kratom Vape Pen Master Distributor Wholesale 7 OH Vape 70% Mit Kratom Extract 7OH Tablets Side Effects Stack'd 7 Hydroxymitragynine Vape 2g Delta 8 Resellers 7oh Vape Uk 7 OHeaven 7 OH Vape Pen 1g Disposable Kratom Vape Is 7 Oh A Scam