Information on GNC in Laconia, NH 03246 Outlet Note Regular Brands GNC New Hampshire Laconia 327724 Rating 4.7 based on 97 votes Address 288 Union Avenue Laconia, NH 03246 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 - Gilford GNC Outlet - Franklin GNC Outlet - Bristol GNC Outlet - Concord People Also Viewed