Murad Environmental Shield Essential-C Toner (6.0 fl. oz.) refreshes and helps balance your complexion to enhance a naturally radiant glow. Bitter Orange Flower and Coneflower Extract strengthen skin's natural defense system while natural moisture factors gently condition and hydrate skin. Essential-C Toner re-establishes normal pH level so skin is receptive to treatment and gives environmentally stressed skin a refreshing, hydrating lift any time of day.