Protect the vibrancy of your colour treated hair with shu uemura's art of hair color lustre duo a colour protecting shampoo and conditioner to leave your hair vivid and revitalised with mirror reflecting shine'. '.strtoupper('k').n'. '.strtoupper('s')uitable for natural to colour treated hair'. '.strtoupper('t')he set contains color lustre sulfate free shampoo 300ml a sulphate free, colour protecting shampoo that lathers into a luxurious, thick foam to nourish the hair whilst protecting colour integrity'. '.strtoupper('b')alancing the scalp, the formula is infused with fatty acid rich musk rose oil, vitamin a and goji berry extract to protect from oxidation and colour fading'. '.strtoupper('n')ourishes with every wash'. '.strtoupper('c')olor lustre conditioner 250ml a colour protecting conditioner that gives your hair a weightless, glazed finish whilst protecting colour vibrancy'. '.strtoupper('g')iving polished shine, its formula is infused with fatty acid rich musk rose oil, vitamin a and goji berry extract to protect from oxidation and colour fading'. '.strtoupper('d')esigned for daily use.