Blond Absolu Cicaplasme Hair Serum by Kérastase is a leave-in hair treatment designed to repair damage and smooth hair. This hair serum for damaged hair contains Hyaluronic Acid and Edelweiss Flowers Extract to hydrate and strengthen hair while also providing heat protection. The opalescent milky serum instantly unifies damaged areas of blonde hair, whether you’re a cool-toned blonde or a honey blonde, or just have highlights. It provides hair texturizing benefits along with its hair smoothing serum effects and offers heat protection from styling tools up to 230 °C, while protecting against other external aggressions. HOW TO USE: STEP 1 Apply this Hyaluronic Acid infused hair serum on lengths and ends of damp hair. STEP 2 Proceed to blow-dry or air dry.