For those with lightened blonde hair, highlights or grey hair, kérastase blond absolu bain lumiere shampoo offers a gentle but powerful cleanse which revives the colour, leaving lighter shades brighter, weightless and more luminous'. '.strtoupper('i')nfused with hyaluronic acid for intense hydration on lightened locks and more brittle greys, this active ingredient works to smooth the hair fibre so that strands are left with a more consistent and sleek appearance'. '.strtoupper('e')nvironmental factors that can dull lightened hair are combatted through a process of eliminating impurities and detoxifying, gently cleansing hair of grime and dirt'. '.strtoupper('p')urified, lightened hair leads to brighter blonde and grey tones that look far more vibrant and shiny'. '.strtoupper('f')urther enriched with natural antioxidant edelweiss flower, the shampoo boosts blonde shades by deeply nourishing and hydrating the hair whilst safeguarding against any more damage by protecting the hair fibre'. '.strtoupper('h')ydrating the hair from root to tip with this silky formula leaves hair with a lightweight more bouncy feel, enhanced shine and more radiant blonde tones'. '.strtoupper('a')pply to wet hair and massage into the scalp until the formula emulsifies and impurities are removed'. '.strtoupper('r')inse off before applying a second dose, working through the lengths and ends until it gently foams'. '.strtoupper('r')inse thoroughly before conditioning.