Wella Professionals gives hairdressers the tools to achieve all clients’ color and care needs with healthy looking hair results. With 1 tube purchased every second in the world, Koleston Perfect is the reference for professional permanent hair color for up to 100% grey coverage with rich healthy-looking results and true to tone precision on all hair types. The Ultra Precision color technology reduces the formation of free radicals which can lead to unpredictable color results and damage the hair. It creates controlled environment for precise color formation deep inside the hair while providing protection to the hair bonds.