Discover our cutting-edge anti-breakage technology. Keratin Color, with Pre-Color serum, leaves your hair looking healthy and strong for up to 80% less hair breakage and extra long-lasting color intensity! Kbond-plex repairs inner hair'structure and coats the hair'surface after the coloration process for strong and healthy looking hair. The shades provide intense and long-lasting color with even results from root to tip and 100% gray coverage. (Vs untreated hair) Age Group: adult.