KÉrastase Reflection Touche Chromatique Cool Blonde cares & protects hair to refresh & prolong colour intensity for long-lasting results between salon visits. A colour-correcting hair dye formula specially developed to be mixed with Fondant Chromatique or Masque Chromatique to bring the best care & colour integrity. The ink-pen revives & corrects blonde hair from unwanted yellow shades & neutralises brassiness to restore bright, radiant cool tones back into your blonde locks. The highly concentrated colour reviving hair dye formula has been specially chosen for its efficiency in colour neutralisation & enhancement to provide long-lasting, vivid colour whilst being gentle on the hair. Hair is left soft to touch, smooth with a radiant shine & revitalised colour. Use 2-3 weeks after your salon colour treatment to maintain colour.