Information on GNC in Alexandria, VA 22315 Outlet Note Regular Brands GNC Virginia Alexandria 325125 Rating 4.7 based on 97 votes Address 7100 Silver Lake Boulevard Alexandria, VA 22315 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 - Alexandria GNC Outlet - Alexandria GNC Outlet - Alexandria GNC Outlet - Alexandria People Also Viewed