Information on GNC in South Plainfield, NJ 07080 Outlet Note Regular Brands GNC New Jersey South Plainfield 329947 Rating 4.7 based on 97 votes Address 2301 Park Avenue South Plainfield, NJ 07080 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 - Bernardsville GNC Outlet - Bedminster People Also Viewed