Experience lightening and colouring in 1 step for vibrant and intense colour, thanks to the Brilliance Luminance formula specially developed for dark hair. The high-performance formula lightens and colours the hair in just one step and it provides you with perfect grey coverage and irresistible colour intensity for up to 10 weeks, without having to pre-lighten the hair beforehand. The Diamond Gloss Sealer post-colour treatment contains Keratin and Apricot Kernel Oil for healthy-looking, stronger hair. It locks in the colour pigments and helps your colour stay more vibrant for longer.