Kerastase’s New Blond Absolu Cicanuit Night Serum for Blondes August 8, 2020 by Matthew Jonathan View this post on Instagram New Kérastase Blond Absolu Cicanuit Night Serum The highest concentration of Hyaluronic Acid to deeply recover blonde hair overnight. A post shared by Matthew Jonathan / Balayage (@matthewjonathan) on Aug 8, 2020 at 6:18am PDT