KÉrastase Reflection Touche Chromatique Cool Brown 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 refreshes brunettes shades & neutralises uneven red or brassy undertones for a cool brown hair result for a long-lasting effect & a shimmering radiance. // The ultra-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 deeply nourishes with ultimate softness, smoothness & shine. Colour is boosted with a radiant shine & colour is revitalised. // Use 2-3 weeks after your salon colour treatment to maintain colour.