Information on GNC in Philadelphia, PA 19111 Outlet Note Regular Brands GNC Pennsylvania Philadelphia 329154 Rating 4.7 based on 97 votes Address 6401 Oxford Avenue Philadelphia, PA 19111 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 - Philadelphia GNC Outlet - Philadelphia GNC Outlet - Philadelphia GNC Outlet - Philadelphia People Also Viewed