Kerastase Blond Absolu Anti-Brass Purple Shampoo has a combination of Edelweiss Flower Extract, Hyaluronic Acid, and Ultra-Violet Pigments, the powerful blend that keeps the hair well-hydrated and while it’s protected from brassiness. It works amazingly for especially blonde hair, and we’ve seen it brighten its tone and give it that extra shine. For us, those benefits combined with its easy application are good enough reasons to love and recommend this shampoo.