GSC Flavrx GSC Flavrx. Overview. A fine purveyor of oils, pods, sweets, and even concentrates, Flav (formerly known as FlavRX) is the one-stop shop for all your CBD needs. They offer exciting and fun flavors like root beer, watermelon, bubblegum, and mango! The Flav brand, formerly known as FlavRX, is seen everywhere. Magazines, billboards, even taxi cabs. […]