Information on GNC in Mount Holly, NC 28120 Outlet Note Regular Brands GNC North Carolina Mount Holly 328505 Rating 4.7 based on 97 votes Address 617 Highland Street Mount Holly, NC 28120 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 - Charlotte GNC Outlet - Charlotte GNC Outlet - Charlotte GNC Outlet - Charlotte People Also Viewed