Information on GNC in Mercerville, NJ 08690 Outlet Note Regular Brands GNC New Jersey Mercerville 328274 Rating 4.7 based on 97 votes Address 1801 Kuser Road Mercerville, NJ 08690 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 - Bridgewater GNC Outlet - Bridgewater GNC Outlet - Brick GNC Outlet - Barrington People Also Viewed