Information on GNC in Bethlehem, PA 18015 Outlet Note Regular Brands GNC Pennsylvania Bethlehem 325515 Rating 4.7 based on 97 votes Address 104 e Third Street Bethlehem, PA 18015 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 - Bethlehem GNC Outlet - Bethlehem GNC Outlet - Bethlehem GNC Outlet - Bethlehem People Also Viewed