Information on GNC in Hillsboro, NH 03244 Outlet Note Regular Brands GNC New Hampshire Hillsboro 327322 Rating 4.7 based on 97 votes Address 315 West Main Street, po box 391 Hillsboro, NH 03244 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 - Concord GNC Outlet - Jaffrey GNC Outlet - Concord GNC Outlet - Allenstown People Also Viewed