Hours Of Operations GNC New Hampshire Portsmouth GNC Hours of Operation and Locations in Portsmouth, NH 4.9 - 150 votes 2 Locations in Portsmouth GNC Hours Category: Beauty & Health GNC - Portsmouth, NH 03801 1500 Lafayette Road, Suite 4(603) 427-1613 View Store Details GNC - Portsmouth, NH 03801 1303 Woodbury Avenue View Store Details Explore PortsmouthView More Apparel MarshallsTJ MaxxBig LotsH & MCarhartt Sports Dick's Sporting GoodsLululemon AthleticaEastern Mountain SportsLegacy SportsG & S Sporting Goods Jewelry MarshallsKay JewelersJared - Galleria of JewelryAlex and Ani Recommend For You Cotton on Bally Total Fitness Eastern Mountain Sports Trader Joe's The Athlete's Foot Diane's Beachwear Bottega Veneta Hanna Andersson Louis Vuitton Sportsman's Warehouse