Color Expert Treatment has been specially developed for complimentary use with Color Expert or any other home hair colour brand for perfect colour beauty and visibly better hair quality. It has been infused with OmegaPLEX Professional Anti-Breakage Technology which strengthens hair Micro-bonds and locks-in colour intensity for strong, healthy hair. Apply gently on wet hair, leave-in for one minute. Rinse thoroughly. For best results, use once a week. For Coloured, Highlighted or Chemically Treated Hair.