Blond Absolu 2% Pure Hyaluronic Acid Serum 50ml
Hydrating skincare serum, now for hair. New Blond Absolu 2% Pure Hyaluronic Acid Serum by Kérastase is a hydrating, repairing blonde hair and scalp serum. It’s the ultimate blonde repair serum for bleached blondes, as it contains Hyaluronic Acid – with our highest concentration of Macro and Micro Hyaluronic Acid – to repair the surface damage of hair and moisturise both scalp and hair.
The lightweight texture of this clear gel serum preserves the scalp barrier, leaving only a feeling of comfort. Tested on freshly lightened hair, this Kérastase serum repairs 20% of surface damages in one use*, for stronger blonde hair, that is replenished, plumper and intensely hydrated.
Just like with skincare, you can layer 2% Pure Hyaluronic Acid Serum with Blond Absolu Huile Cicaextreme hair oil for enhanced results.
| Key Features | Details |
|---|---|
| Active Ingredient | 2% Pure Hyaluronic Acid (Macro and Micro) |
| Target Hair Type | Bleached, light blonde hair |
| Application Area | Scalp and hair |
| Form | Clear gel serum, 50ml |
| Benefits | Repairs surface damage, hydrates scalp and hair, improves hair plumpness |
FAQ
How does this serum repair damaged blonde hair?
The serum contains 2% Pure Hyaluronic Acid, including both macro and micro forms, which penetrate the hair shaft to repair surface damage and deeply hydrate both hair and scalp. Clinical testing shows it repairs up to 20% of surface damage in one application.
Can I use this serum with other Kérastase products?
Yes, it can be layered with other Kérastase products such as Blond Absolu Huile Cicaextreme for enhanced hydration and repair.
Is this product suitable for all types of blonde hair?
It is specifically formulated for bleached or light blonde hair and is most effective on hair that has undergone lightening processes.

Nicholas Metcalfe –
After using this serum for two weeks, my blonde hair feels much softer and fuller. The scalp is also more comfortable, especially after washing. I noticed less frizz and the color stayed vibrant without fading quickly.
Karen McDonald –
It works well for repairing dry, damaged blonde strands. The lightweight texture absorbs quickly and doesn’t leave a greasy feel. I use it after washing and before styling.
Diana Tucker –
My hair has been bleached twice and was very brittle. After using this serum regularly, it feels stronger and more resilient. The hydration is noticeable, especially in dry weather.
Leah Murray –
I mixed it with the Huile Cicaextreme for extra nourishment. The combination gives great results, especially for the ends of my hair which were frayed and dry.
Luke Ince –
This serum is a game-changer for maintaining healthy blonde hair. It doesn’t weigh down the hair and provides long-lasting moisture. I’ve used it every other day and see visible improvement.