Dark Rainbow is a hybrid weed strain made by crossing GMO with Rainbow Belts F1. The effects of this strain are believed to be relaxing and giggly. The dominant terpene in Dark Rainbow is caryophyllene. Expect a lot of funk, with chemical, pepper notes and hints of tropical sweetness. Total Terpenes: 2.01%. Top Terpenes: Myrcene, Limonene & Caryophyllene.