Luminous Softening Treatment Masque for Dry or Highlighted, Color-Treated Hair. Hair is left softer and shimmers with radiance. Intensity and depth of the color are revealed, while hair fiber is protected from external aggressions. Apply a quarter-sized amount to clean, towel-dried hair. Massage through from roots to ends, focusing on the most sensitized areas. Leave on for 5-10 minutes and rinse thoroughly.