Kerastase - Resistance Volumifique Gel Treatment is a conditioner specially formulated for fine and weakened hair. This conditioner has the same function as a treatment as it is extra nourishing, you can skip the hair treatment, as this conditioner has the same soothing effect. This conditioner is gel based, and incredibly easy / comfortable to work with. Although this conditioner is incredibly caring burdened hair is not. The gel feels light in the hair and adds maximum volume while you get a well-groomed and shiny hair.