Hair Bonding 101: Understanding Kérastase Première
If your hair is breaking, brittle, or chemically damaged, you've probably heard of bond repair — and probably of Olaplex. But Olaplex isn't the only game in town. Kérastase Première is the brand's answer to bond-rebuilding, and it's worth understanding.
What Are Hair Bonds?
Hair is made of keratin protein, held together by three types of internal bonds:
- Disulfide bonds — the strongest, broken by chemical processes (color, perm, relaxer)
- Hydrogen bonds — broken by water and reformed when hair dries (this is how styling works)
- Salt bonds — broken by pH changes
Bond repair products specifically rebuild broken disulfide bonds.
How Première Works
Kérastase Première uses citric acid + glycine to remove calcium build-up and rebuild broken disulfide bonds. Calcium accumulates in hair from hard water and is one of the leading causes of brittleness — Olaplex doesn't address this.
The Première Ritual
The full Première system has 4 products:
- Bain Décalcifiant — removes calcium build-up
- Fondant Fluidité — repairing conditioner
- Masque Filler — weekly bond mask
- Sérum Filler — heat protectant + repair leave-in
Use the wash + condition daily, mask weekly, and serum before any heat styling.
Première vs Olaplex: Honest Comparison
Olaplex No.3 (the at-home treatment) and Première address damage from different angles. Olaplex focuses purely on disulfide bond rebuilding. Première also tackles calcium build-up.
For most damaged hair, Première is more comprehensive — but Olaplex is still excellent for severe chemical damage.
Visible Results
In Kérastase's clinical testing, Première reduces breakage by up to 97% after one use. We've seen comparable results on real clients in our salon.
Save with the Bundle
Our Première Bond Repair Quartet bundles all 4 products at $182 (saves $32 versus separately).