Serie Expert Powerdose Contrast is a treatment for highlighted hair. Use as a post-highlight repair treatment. This in-salon post-highlight repair treatment carefully targets each highlighted fibre to protect and maintain the hair's natural condition from within. It also helps to maintain the brightness and intensity of highlights in between highlight services. Highlights are transformed, smoothed and hair easy to detangle. Highlights really are treated and the hair is left light and radiant. Selectively targets sensitized, highlighted hair to revitalize and accentuate its illumination against the rest of the hair.