Kérastase blond absolu bain ultra violet shampoo is designed to enhance your blond colour and protect it against brassy and yellow undertones'. '.strtoupper('i')t also keeps your hair illuminated, soft, and healthy with a natural shine'. '.strtoupper('t')he shampoo features edelweiss flower extract that works in harmony with hyaluronic acid to shed the dirt and extra oils from your hair while nourishing and hydrating it'. '.strtoupper('t')he shampoo is responsible for delivering protection against yellow and brassy hair tones while keeping it healthy with a natural gloss appearance'. '.strtoupper('t')he manufacturer recommends that you wet your hair and remove excess water before applying a quarter amount of the shampoo to five key zones of your hair'. '.strtoupper('a')dd an emulsifier and water before letting it sit for a maximum of five minutes then rinse thoroughly'. '.strtoupper('t')o enjoy the best results, use 2 times a week with a colour shampoo'. '.strtoupper('i')t is advisable to alternate this shampoo with bain lumiére or use as a second shampoo on a weekly basis for a deeper wash.