Kerastase Blond Absolu Repairing Serum

Size: 50ml

A lightweight, dual-action serum that repairs hair and soothes the scalp, formulated with pure hyaluronic acid to condition blonde hair and provide instant hydration.

Introduce the iconic skincare ingredient, hyaluronic acid, to your hair-care routine with this dual-action, leave-in serum. The two percent pure hyaluronic acid in this serum will soothe the scalp and instantly hydrate hair. From scalp to ends, this serum is loved by professionals to create healthy-looking, shiny blonde hair. It’s most effective when applied to wet or towel-dried hair to activate the hyaluronic acid ingredient.

In a controlled study using Blond Absolu Hyaluronic Acid Hair Serum, results showed (vs. non-conditioned shampoo):

- Reduces breakage, +45% stronger hair

- Instantly moisturizes for +25 % more hydrated hair


  • Repairs up to one year of surface damage caused by blonding or lightening services in one use
  • Soothes and protects against scalp dryness
  • Instantly hydrates and adds shine to hair

How to use:

  • After washing hair with Blond Absolu Shampoo and Conditioner for Blonde Hair (each sold separately), apply as the last step in your routine to towel-dried hair and scalp.
  • Depending on hair length, type, and texture, pump 7-13 doses into the palm of the hand and use fingers to massage into scalp and mid-lengths to ends of hair (1 pump = 1 dose).
  • Do not rinse.
  • Can be used immediately after hair color treatment.

Pro tip:

  • Use after your first wash post in-salon color service to instantly repair damage from lightening services, soothe, and add hydration.
  • For ultimate repair and hydration, pair with Blond Absolu Strengthening Hair Oil for Very Damaged Blonde Hair (sold separately).