Information on GNC in Cedar Knolls, NJ 07927 Outlet Note Regular Brands GNC New Jersey Cedar Knolls 325913 Rating 4.7 based on 97 votes Address 235 Ridgedale Avenue Cedar Knolls, NJ 07927 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 - Bernardsville GNC Outlet - Bloomfield GNC Outlet - Bedminster GNC Outlet - Bloomfield People Also Viewed