Information on GNC in Philadelphia, PA 19144 Outlet Note Regular Brands GNC Pennsylvania Philadelphia 329121 Rating 4.7 based on 97 votes Address 6201-23 Germantown Philadelphia, PA 19144 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