Hard water leaves more than a chalky feeling on your skin, it builds up on hair too, leaving it dull, stiff and prone to breakage. Kérastase’s Décalcifiant Première Routine is a two-step ritual built to strip that buildup away and rebuild the hair’s inner strength from the very first wash.
Why you will love this Décalcifiant routine
The set pairs a pre-shampoo concentrate with a decalcifying bain, both built around citric acid, an organic acid that works from the core of the hair fibre to the surface to dissolve calcium overload, and glycine, an amino acid that helps rebuild the hair’s internal structure as it cleanses.
- Helps recreate up to 99% of hair’s original strength
- Delivers up to 97% stronger inner hair structure
- Reduces breakage by up to 93%
- Boosts shine by up to 75%
- Two-step ritual: concentrate then decalcifying shampoo
- Purifies dulling mineral and calcium buildup from hard water
- Leaves hair visibly smoother, glossier and easier to manage
What it does
Used together, the concentrate and the bain work in sequence: the concentrate goes in first to loosen calcium deposits along the fibre, then the bain cleanses and emulsifies everything away while reinforcing the hair from within. The result is hair that feels lighter, looks glossier and holds up better to daily handling.
Who it is for
Anyone whose hair feels stiff, dull or extra fragile from hard tap water, frequent washing or general damage. It is especially useful if lengths feel coated or heavy no matter what you use on them.
How to use it
- Step 1: Apply Concentré Décalcifiant Ultra-Réparateur generously on wet lengths before shampoo
- Massage through and leave on for 5 minutes, do not rinse
- Step 2: Apply Bain Décalcifiant Réparateur on top of the wet, still-coated hair
- Massage to emulsify, then rinse thoroughly
Key details
- Brand: Kérastase (France)
- Product type: 2-piece decalcifying and repairing hair care set
- Best for: damaged hair affected by hard water and calcium buildup
- Key ingredients: citric acid, glycine
- Set includes: Concentré Décalcifiant Ultra-Réparateur 250ml and Bain Décalcifiant Réparateur 250ml
- Delivery: available in Cairo and across Egypt with cash on delivery
Frequently asked questions
Do I use both products every wash?
Yes, they are designed to be used together as a two-step routine: the concentrate first, then the bain on top, for the full decalcifying and repairing effect.
Is this set suitable for coloured hair?
The routine is formulated to repair and strengthen damaged lengths in general; if your hair is coloured and damaged, it can help restore smoothness and shine, following the same two-step application.
Size
Set of 2: 250ml concentrate and 250ml decalcifying shampoo.
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