KÉRASTASE Blond Absolu Hyaluronic Hair Serum 1.7 fl oz for Bleached & Highlighted Blonde — Hydrating, Repairing

KÉRASTASE Blond Absolu Hyaluronic Acid Hair Serum is a lightweight dual-action serum that instantly hydrates bleached and highlighted blonde hair while repairing surface damage and soothing the scalp.

This concentrated 1.7 fl oz serum combines a high-purity hyaluronic acid complex with targeted conditioning agents to address the particular needs of lightened hair. It’s formulated for use after washing on towel-dried hair to deliver immediate moisture, reduce breakage, and leave strands visibly shinier—without weighing hair down. The product is positioned within the Blond Absolu range, designed to preserve cool tones while restoring fiber integrity from scalp to ends.

How does this serum repair damage from bleaching or highlights?

The serum uses a formulation that binds moisture deeply into the hair fiber, smoothing the surface and helping to reduce the appearance of wear caused by lightening. In professional tests, a single application improved the look and feel of surface damage accumulated over time.

• Contains 2% pure hyaluronic acid for intensive hydration and plumping of fibers.
• Targets surface roughness and scales to improve shine and manageability.
• Designed to be the final step in a wet-hair routine for best absorption.

Will the serum soothe a dry, irritated scalp?

Yes — the hyaluronic complex provides immediate hydration to the scalp as well as the hair, helping to relieve tightness or dryness that can follow chemical lightening. Massage application encourages even distribution across the scalp and mid-lengths for a calming effect.

• Apply doses directly to towel-dried scalp to moisturize without rinsing.
• Massaging stimulates absorption and can reduce surface dryness.
• Lightweight texture avoids greasy buildup while delivering hydration.

How should I use this serum in my routine for best results?

Use the serum as the last step after shampooing and conditioning on towel-dried hair. Apply the recommended number of doses (typically 7–13) across the scalp and through mid-lengths to ends, then gently massage; leave in—do not rinse—to allow continuous hydration and repair action.

• Best on wet or towel-dried hair for immediate penetration.
• Distribute doses between scalp, mid-lengths, and ends for full coverage.
• Pair with other Blond Absolu products for tone maintenance and fiber restoration.

What visible benefits can I expect after using the serum?

After application you should notice increased sheen, softer texture, and reduced surface roughness, which together make hair easier to style and less prone to breakage. The formula aims to improve the overall look of bleached or highlighted blonde hair from the first use, while ongoing use helps maintain fiber strength.

• Instant hydration and added shine without heaviness.
• Improved manageability and reduced breakage over time.
• Scalp comfort and smoother hair surface for a healthier appearance.

Who is this for: This serum is intended for people with bleached, highlighted, or naturally light blonde hair seeking targeted hydration and surface repair. It’s suitable for those experiencing dryness, breakage, or scalp tightness after color services and for anyone wanting to preserve bright, cool-toned blonde while improving hair softness and shine. Professionals and at-home users alike can incorporate it as the finishing step in a blonde care routine.

Ingredients

AQUA / WATER / EAU • GLYCERIN • SODIUM HYALURONATE • HYDROXYETHYLPIPERAZINE ETHANE SULFONIC ACID • PHENOXYETHANOL • CITRIC ACID • PEG-40 HYDROGENATED CASTOR OIL • CHLORPHENESIN • TETRASODIUM GLUTAMATE DIACETATE • LIMONENE • PARFUM / FRAGRANCE