Information on GNC in Charleston, SC 29407 Outlet Note Regular Brands GNC South Carolina Charleston 325952 Rating 4.7 based on 97 votes Address 1115 old Town Road Charleston, SC 29407 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 - Charleston GNC Outlet - Charleston GNC Outlet - Charleston GNC Outlet - Charleston People Also Viewed