2% Pure Hyaluronic Acid Serum l Blond Absolu l Kérastase
HA Serum Packshot HA Serum Packshot HA Serum In HandHA Serum In Hand Before After Emma FrontBefore After Emma Front Blond Absolu Benefits 1Blond Absolu Benefits 1 Blond Absolu Quote HovigBlond Absolu Quote Hovig

2% Pure Hyaluronic Acid Serum
Blond Absolu

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 moisturize 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 bleached hair, this Kérastase serum repairs damage 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, to seal in the hydration, for ultimate repair. Repairs damages in one use*, for 95% stronger blonde hair**. Recyclable bottle, made of 20% recycled glass. #YouDareWeCare *Surface damage. Instrumental test after application of 2% Pure Hyaluronic Acid Serum **Instrumental test after application of Bain Lumiere, Cicaflash and 2% Hyaluronic Acid Serum


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HA Serum In Hand

Apply to towel-dried hair. 7 to 13 doses depending on the lengths and 7 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.

Blond Absolu Benefits 1

- Repairs damages in one use for stronger blonde hair.
- Intensily and instantly hydrates scalp and hair for long-lasting hydration.
- Relieves and comforts scalp, while preserving the scalp barrier.

Repairs damages in one use*
96% stronger blonde hair**
3 days ultimate hydration **
Hydrated scalp***
Preserves scalp barrier***

*Surface damages. Instrumental test after application of 2% pure hyaluronic acid serum.
**Instrumental test after application of Bain Lumiere, Cicaflash and 2% pure hyaluronic acid serum.
***Instrumental clinical test after application of 2% pure hyaluronic acid serum.

Key Ingredients

Hyaluronic Acid :
Hyaluronic Acid fills and heals fiber wounds from within for a uniform, deeply nourished cuticle. This ultra concentrated acid strengthens hair and hydrates scalp, preventing future breakage.

Hyaluronic Acid, the hero ingredient in skincare, works here to fill and heal the hair fiber from within, for a smooth cuticle that’s deeply hydrated. And because this serum is the Kérastase product’s highest concentration of Hyaluronic Acid, it works overtime to hydrate the scalp and strengthen your hair. Preventing future breakage.

Full ingredients list


Blond Absolu Quote Hovig

How to maintain blonde hair?

Kérastase discovered the 2 golden rules of bleached hair.

First, bleached hair needs to be hydrated, and that means depositing a layer of moisturizing and nourishing actives on top of the fiber cuticle to avoid surface damage.

Second, bleached hair needs fiber healing, protection and neutralization, to strengthen the fiber, prevent future breakage and neutralize unwanted brassiness.

In Salon Ritual Blond Absolu Kérastase

In Salon Services

Fusio-Dose: Boost your Blond

A shot of powerful restoration that boosts the natural beauty of blonde between color services. Concentrated healing ingredients instantly restore fibers sensitized by lightening.

  • Repairs strands from technical, thermical and chemical damages
  • Recontructs fiber structure 
  • Makes hair manageable without weight

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Your Personal Care

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Fusio-Dose In Salon

Learn about the signature in-salon service that transforms hair quality in under 5 minutes.

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