Product Overview Hair in need of some extra care? Rehydrate dry, chemically treated hair with the Sebastian Foundation Hydre Conditioner. This is our stylists formula of choice to help reinvigorate & replenish hair back to health for a finish that both looks & feels luscious. Benefits Hair benefits from intense nourishment with this innovative conditioner from Sebastian by Wella. Fine, chemically treated hair is thoroughly cared for & the formula is colour safe.