Information on GNC in Upper Sandusky, OH 43351 Outlet Note Regular Brands GNC Ohio Upper Sandusky 330328 Rating 4.7 based on 97 votes Address 429 West Church Street Upper Sandusky, OH 43351 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 - Ada GNC Outlet - Bowling Green GNC Outlet - Bellefontaine GNC Outlet - Ashland People Also Viewed