Information on GNC in Richmond, MI 48062 Outlet Note Regular Brands GNC Michigan Richmond 329453 Rating 4.7 based on 97 votes Address 66711 Gratiot Avenue Richmond, MI 48062 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 - Algonac GNC Outlet - Auburn Hills GNC Outlet - Auburn Hills GNC Outlet - Bloomfield Hills People Also Viewed