Information on GNC in Jefferson, OH 44047 Outlet Note Regular Brands GNC Ohio Jefferson 327572 Rating 4.7 based on 97 votes Address 5 East Ashtabula Street Jefferson, OH 44047 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 - Ashtabula GNC Outlet - Ashtabula GNC Outlet - Ashtabula GNC Outlet - Aurora People Also Viewed