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. 7OH Vape: What You Need To Know Brooks Healing Center 7 O'Heaven 7 OH Kratom Vape Pen Master Distributor Wholesale Stack'd 7 Hydroxymitragynine Vape 2g Delta 8 Resellers I was just reading a post about 7oh (never heard of it) and this person said that they were offered a free sample at a vape shop and have been highly addicted