Treat your blonde hair to the post bleaching care of masque cicaextreme from kerastase an intensely conditioning mask that has been specially formulated for blonde hair that needs extreme care'. '.strtoupper('e')nriched with hyaluronic acid duo technology and edelweiss oil, this luxuriously rich mask intensely strengthens the hair fibre for 94% stronger hair and works to restore blonde tresses delivering irresistible softness and shine with a lightweight touch'. '.strtoupper('u')se it as a weekly treatment to boost your haircare regime and say goodbye to dry and brittle hair'. '.strtoupper('t')o use apply on washed and towel dried hair onto lengths and ends'. '.strtoupper('l')eave in for 5 minutes'. '.strtoupper('a')dd water, emulsify and rinse thoroughly'. '.strtoupper('t')oday, more than ever, the world needs care responsible and sustainable care'. '.strtoupper('s')ince 2013, kerastase has resolved to extend its expertise in the art of care by committing to using less virgin plastic'. '.strtoupper('d')rawing on their excellence in innovation, finding new ways to cut down on waste and empower their customers to make more sustainable choices'. '.strtoupper('k')erastase is committed to optimising packaging whenever possible, using less virgin materials and more recycled materials, recyclable packaging and refillable delivery systems'. '.strtoupper('b')eginning 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'. '.strtoupper('k')erastase 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'. '.strtoupper('s')ince 2017 the burgos production facility has also been a 'waterloop' factory'. '.strtoupper('t')his means that 100% of the water used for production processes is recycled and reused in a closed loop'. '.strtoupper('t')he external water network is only used in the composition of the products or for employee's day to day needs.