This sativa-dominant hybrid is a crossbreed of Granddaddy Purps (GDP), a famed indica, and Cherry Pie, itself a hybrid descendant of GDP. The exact balance of sativa and indica is unknown for this strain. Like its parents, Phantom Cookies is a California original, with roots in Mendocino County. It's very high in CBD, a chemical used to treat seizures and other serious conditions, but it's relatively low in THC. It works best as a pain reliever, but it's also helpful with anxiety, PTSD, fibromyalgia, and spinal cord injuries.