Salerm21 is more than a conditioner or leave-on hydrating mask that instantly revives and treats damaged hair. Its special formula based on silk proteins gets right to the very core of the hair. Leaves hair lively and shiny and is perfect for protecting hair from the sun,heat,pool chlorine and salt water. Salerm 21 B5 Silk Protein Leave-in Conditioner 34.5oz / 1000ml "Pack of 2".