Information on GNC in Palmyra, PA 17078 Outlet Note Regular Brands GNC Pennsylvania Palmyra 329009 Rating 4.7 based on 97 votes Address 980 East Main st, e Main Street & new Public Palmyra, PA 17078 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 - Ashland GNC Outlet - Avondale GNC Outlet - Berwick GNC Outlet - Allentown People Also Viewed