Buy Four20 | Sunset Runtz | Pre Roll. Sunset Runtz is a hybrid weed strain made from a genetic cross between Sherbet and Runtz. Sunset Runtz is 23% THC, making this strain an ideal choice for experienced cannabis consumers. Leafly customers tell us Sunset Runtz effects include creative, euphoric, and giggly. Medical marijuana patients often choose Sunset Runtz when dealing with symptoms associated with anxiety, depression, and nausea. Bred by the legendary Exotic Genetix, Sunset Runtz features flavors like peach, citrus, and diesel. The dominant terpene of this strain is limonene.