You can leave the hairdresser with the absolutely perfect blonde and watch it lose its beauty a few weeks later. It’s not necessarily the coloring that is to blame: UV, heat, chlorine, salt water and dehydration quickly put lightened hair to the test.
Kérastase is therefore completing its Blond Absolu range with the Kérastase Blonde Guard protective spray, a leave-in treatment specially designed to protect blonde, highlighted and bleached hair from anything that makes it dull and fragile.
99% of attacks that tarnish blonde blocked
The figure inevitably raises an eyebrow. According to Kérastase’s instrumental tests, the Blonde Guard spray blocks 99% of blonde aggressions, taking into account heat, UV, chlorine, salt water and dehydration. The brand also claims 43% less damage after a single application. So the idea is a little different from a purple shampoo. Here, we are not trying to neutralize a yellow reflection already installed, but to prevent the fiber from being damaged and losing its shine.
72 hours of hydration without weighing down the lengths
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The formula contains hyaluronic acid with two molecular weights, responsible for providing hydration while creating a very light barrier around the hair. Kérastase also adds vitamins C and E, chosen to smooth cuticles and promote better light reflection. The brand claims up to 72 hours of hydration. This is particularly interesting on bleached hair which can very quickly become rough at the ends without appreciating ultra-heavy treatments.
The action to do before the hairdryer, the swimming pool or the sun
Kérastase Blonde Guard spray is applied to washed and towel-dried hair, from mid-lengths to ends, then does not rinse. You can then dry your hair normally or let it air dry. It’s also typically the product to take out before a day in the sun, a pool session or a period when you use the hairdryer a lot.
Small reminder: if your blonde is already starting to turn yellow, Blonde Guard will not replace purple treatment. Its role is rather to preserve the blonde before it deteriorates.
How to prevent a blonde from becoming dull?
The first reflex is to protect the hair from UV rays, heat and dehydration, three factors which particularly weaken bleached hair. A protective leave-in treatment can form an additional barrier around the fiber. Spacing out heating appliances and using a moderate temperature also helps. Finally, a purple shampoo can be added occasionally if yellow reflections already appear.
Does Blonde Guard replace purple shampoo?
No. Kérastase Blonde Guard Spray is not a color corrector. Above all, it protects the hair from attacks likely to damage it or dull its shine. To neutralize yellow highlights, Kérastase recommends a purple shampoo or mask from the Blond Absolu range.
Can you use Blonde Guard on natural blonde?
Yes, but the product was mainly developed for lightened, highlighted or bleached hair, which is generally more porous and more fragile. A natural blonde can appreciate its hydration and protection. The benefits will simply be particularly interesting on a fiber already sensitized by chemical treatments.
