Information on GNC in Inwood, WV 25428 Outlet Note Regular Brands GNC West Virginia Inwood 327501 Rating 4.7 based on 97 votes Address 7916 Winchester Avenue Inwood, WV 25428 Phone Hours may vary in different stores. For accurate hours, please contact each store directly. Suite643 Hours may vary in different stores. For accurate hours, please contact each store directly. Nearby GNC Outlet GNC Outlet - Charles Town GNC Outlet - Berkeley Springs GNC Outlet - Elkins GNC Outlet - Fairmont People Also Viewed