Information on GNC in Old Lyme, CT 06371 Outlet Note Regular Brands GNC Connecticut Old Lyme 328887 Rating 4.7 based on 97 votes Address 90 Halls Road Old Lyme, CT 06371 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 - Essex GNC Outlet - East Lyme GNC Outlet - Groton GNC Outlet - Groton People Also Viewed