The powerful, calming body buzz is the most notable effect of Blackout OG. Save this rare strain for late at night and be ready for some serious couch-lock. The indica genes are dominant in Blackout OG, which can also have acute psychoactive effects. The exact balance of indica to sativa is unknown, however. The THC content is almost off the charts, with some samples registering more than 26% THC, just a couple points below the record holder. The CBD content, meanwhile, is modest, about 0.6%. Blackout OG is great for treating insomnia, as it promotes a serene, sleepy state. It’s a crossbreed of Black Domina, the source of its indica genes, and Amnesia Haze, a sativa.