A further step in gorgeous colour and brightness, the Dualsenses Color Extra Rich range uses innovative Luminescine technology to convert UV light into visible light, this in turn increases the amount of light your hair reflects creating bolder and brighter colour. The Brilliance conditioner increases hair luminosity whilst providing a detangling effect. For Thick to Coarse hair. To use: Apply to shampooed hair, leave on for 2-3 minutes and rinse thoroughly.