A further step in gorgeous colour & 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 & brighter colour. Furthermore, the Brilliance shampoo uses Fade Stop Formula to reduce colour fading. For Thick to Coarse hair. To use: Apply to wet hair, work into a lather & rinse thoroughly.