Kérastase Blond Absolu Bain Ultra-Violet is rich in neutralising agents to instantly remove brassiness and yellow undertones. Ideal for cool blondes and grey hair, the regular use of this shampoo provides durable anti-brassiness protection, keeping blonde shades cool for longer. It protects hair from daily oxidation and pollution, restoring shine and softness. Enriched with a potent combination of Hyaluronic Acid and Edelweiss flower, the formula instantly boosts blonde luminosity while deeply nourishing the fiber.