Schwarzkopf Brilliance offers permanent fashion shades with brilliant shine and up to 10 weeks intensity. The high-performance hair colour formula provides you with perfect grey coverage and irressistible colour intensity for up to 10 weeks. The Diamond Gloss Sealer post-colour treatment contains Keratin and Apricot Kernel Oil for healthy-looking, stronger hair. It locks in the colour the colour pigments and helps your colour stay more vibrant for longer. Now in a tube for easy application and multiple uses.