Information on GNC in Arnold, MD 21012 Outlet Note Regular Brands GNC Maryland Arnold 325229 Rating 4.7 based on 97 votes Address Bay Hills s.c., 1264 bay Dale Drive Arnold, MD 21012 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 - Annapolis GNC Outlet - Annapolis GNC Outlet - Annapolis GNC Outlet - Annapolis People Also Viewed