New blond absolu 2% pure hyaluronic acid serum by kerastase is a hydrating, repairing blonde hair and scalp serum. It's their ultimate blonde repair serum for bleached blondes, as it contains hyaluronic acid with their highest concentration of macro and micro hyaluronic acid the formula helps repair the look of surface damage of the hair and moisturises the scalp whilst leaving the hair feeling hydrated. This clear gel serum, with a lightweight texture, respects the skins natural barrier function and leaves the scalp with a feeling of comfort. Just like with skincare, you can layer 2% pure hyaluronic acid serum with blond absolu huile cicaextreme hair oil, to seal in the care. Recyclable bottle, made of 20% recycled glass. To use apply to towel dried hair. 4 doses depending on the lengths and 4 doses on the scalp. 1 dose 1 pump. Massage gently. Seal ends with huile cicaextreme for ultimate repair and hydration. Proceed to blow dry or airdry. Today, more than ever, the world needs care responsible and sustainable care. Since 2013, kerastase has resolved to extend its expertise in the art of care by committing to using less virgin plastic. Drawing on their excellence in innovation, finding new ways to cut down on waste and empower their customers to make more sustainable choices. Kerastase is committed to optimising packaging whenever possible, using less virgin materials and more recycled materials, recyclable packaging and refillable delivery systems. Beginning with shampoo bottles and branching out to more and more products, they are creating a sustainable packaging program, with many more refill innovations to follow. Kerastase is also committed to more sustainable production and since 2019 their factory in burgos, spain has achieved carbon neutrality by improving energy efficiency and using 100% renewable energy. Since 2017 the burgos production facility has also been a 'waterloop' factory. This means that 100% of the water used for production processes is recycled and reused in a closed loop. The external water network is only used in the composition of the products or for employee's day to day needs.