A repairing, decalcifying, softening conditioner for damaged hair.
It removes the calcium overdose that attacks treated hair, and then repairs the damage in a dual-action effect, restoring softness, moisture, and strength.
The first decalcifying repairing conditioner for all types of damaged hair. It works to recreate hair’s original elasticity, strengthening the fiber.
Instantly, moisture and fluidity are restored to over-processed or bleached hair.
When hair is already damaged, calcium will accumulate, further weakening the cuticle and cortex of the hair.
Kérastase Fondant Fluidité Réparateur dual-action fights calcium overdose, first decalcifying, then repairing hair.
The rigid aspect of hair due to calcium in hard water is neutralized, further breakage is prevented, and hair is repaired from the inside out.
Kérastase Première Fondant Fluidité Réparateur envelops hair with its lightweight jelly-like texture and restores hair strength and resilience.
Your hair is left amazingly soft, smooth, and supple.
First, use the pre-shampoo treatment, Kérastase Première Concentré Décalcifiant Réparateur, and without rinsing, layer on Kérastase Bain Décalcifiant Réparateur for maximum decalcifying and repairing results.
Why not try Intensive Resurfacing Repairing Serum for even more restructuring hair care?
Patented technology.***
+86% moisture**
Benefits:
✔ Instantly restores moisture and fluidity
✔ Neutralises hair rigidity
✔ Hair is supple, smooth and shiny
• +28% more supple hair*
• 97% stronger hair**
• 7x smoother hair**
• 82% shinier hair**
• +86% moisture**
• 2x softer hair**
*Instrumental test after 6 applications of Première Concentré + Bain + Fondant
**Instrumental test
Key Ingredients:
Citric Acid
How to use:
Step 1:
Apply to shampooed, towel-dried hair.
Step 2:
Massage through lengths and ends.
Step 3:
Leave on for 3 to 5 minutes. Rinse.
Fragrance:
PORTOFINO SUMMER: This luminous creation reveals the sensuality of a vibrant mandarin.
The Fragrance unveils a citrus & mandarin cocktail surrounded by an accord of orange flower and jasmine.
It creates a true summer nectar sending you directly to Italy.
CITRUS • MANDARIN • PREMIUM FLOWERS • WOODY
Why is calcium bad for your hair?
Calcium itself isn’t inherently bad for your hair. The issue is more about how calcium builds up on your hair and scalp, not calcium as a nutrient.
🧴 1. Calcium buildup from hard water
If you live in an area with hard water, the water contains high levels of calcium (and magnesium). Over time, this calcium can deposit onto your hair shaft and scalp.
That buildup leads to:
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Dullness – calcium forms a coating that prevents light from reflecting off the hair’s surface.
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Dryness and brittleness – it makes it harder for moisture and conditioner to penetrate the cuticle.
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Breakage – the hair becomes stiff and less elastic.
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Scalp flaking or irritation – the minerals can dry out the scalp, mimicking dandruff.
🧬 2. Calcium inside the follicle (rare but possible)
Excess calcium in the body, or in scalp tissues, can theoretically lead to calcification around hair follicles. That can reduce blood flow and nutrient delivery to the follicle — which is sometimes linked to thinner, weaker hair growth.
This is more speculative and usually seen in cases of imbalance (not from diet alone).
💧 3. Calcium interferes with products
When calcium ions bind to surfactants (the cleansing agents in shampoos), it can make shampoos less effective — meaning hair isn’t fully cleansed, leaving residue and product buildup.
🩷 How to fix or prevent calcium buildup
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Use a clarifying or chelating shampoo once a week (look for ingredients like citric acid).
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Rinse with filtered or distilled water if your tap water is hard.
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Install a shower filter — it helps remove calcium and other minerals.
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Fusio-Dose or similar salon treatments (like those from Kérastase) can help restore smoothness and shine after mineral buildup.
