Moisturizing serum, now for hair. The new 2% Pure Hyaluronic Acid Serum from Blond Absolu is a moisturizing and repairing serum for hair and scalp. It is the ultimate repair serum for any type of bleached blonde, as it contains Hyaluronic Acid - with our highest concentration of Macro and Micro Hyaluronic Acid - to repair damage to the hair surface and hydrate both the scalp and hair. The light texture of this transparent gel Serum preserves the scalp barrier, leaving only a feeling of comfort. Tested on recently bleached hair, this Kérastase serum repairs surface damage in a single use, for stronger, plumper, more voluminous and intensely hydrated blonde hair. As with skincare, you can layer Blond Absolu 2% Pure Hyaluronic Acid Serum with Blond Absolu Huile Cicaextreme Hair Oil to seal in moisture for ultimate repair. How to use: Apply to towel-dried hair. From 7 to 13 doses depending on the length of the hair and 7 doses on the scalp. Massage gently. Seal the ends with Huile Cicaextreme for definitive repair and hydration. Proceed to dry with a dryer or in the open air.