A dual-action decalcifying and repairing pre-shampoo hair treatment for damaged hair. Removes calcium and reinforces hair strength, leaving it stronger, smoother, and shinier.
A dual-action decalcifying and repairing pre-shampoo hair treatment for damaged hair. Removes calcium and reinforces hair strength, leaving it stronger, smoother, and shinier.
Product layering is a skincare-inspired technique that optimizes the benefits of active ingredients.Think of an application of a skin serum, followed by a day cream. The same technique can be applied to your hair.
TO OPTIMIZE THE RANGE'S EFFECTIVENESS, IT'S ESSENTIAL TO LAYER THE CONCENTRATE AND THE PREMIÈRE BAIN.
PDP Tabs
Product Description
The first pre-shampoo treatment that removes calcium and fully repairs all types of damaged hair.
Hard water with calcium can further damage already delicate dry, over-processed or bleached hair. Because it’s more porous, damaged hair absorbs 3 times more calcium than natural hair. This treatment’s concentration of pure acids has a dual action: it decalcifies hair from this calcium overdose, and repairs it from the inside out, restoring hair strength, and reversing its stiff, dull appearance.
With its transparent gel texture, this brilliant hair savior dramatically repairs persistent damage, reconnecting broken keratin links to reinforce hair strength and structure. Hair is left stronger, healthier-looking, and shinier – as if renewed. Leave on Kérastase Concentré Décalcifiant Ultra-Réparateur without rinsing, and layer with Kérastase Première Bain Décalcifiant Réparateur for extra decalcifying and repairing action. Team with Fondant Fluidité Réparateur as a final step.
Bottle made of 95% recycled plastic*
Recreates 99% of hair's original strength**
*Excluding colorants and additives
**Instrumental test after 6 applications of Première Concentré + Bain + Fondant/Masque
✔ Decalcifies* and dramatically repairs persistent damage.
✔ Reverses stiffness and dullness
✔ Reconnects broken links between keratin chains* for an inner structure reinforcement
✔ Recreates 99% of hair's original strength*
✔ +97% inner structure reinforcement*
✔ 93% less breakage**
✔ 75% more shine**
*Instrumental test after 6 applications of Première Concentré + Bain + Fondant/Masque
**Instrumental test
Step 1:
Apply generously on wet lengths before shampoo and massage throughout.
Step 2:
Leave on for 5 minutes. Don’t rinse.
Step 3:
Layer Première Bain directly on top to maximize efficacy.
Step 4:
Rinse and follow with Première Fondant or Mask.
Key Ingredients
Citric Acid
An organic acid that acts from core to surface to deeply eliminate calcium overdose, neutralising dullness and stiffness
Glycine
Once calcium is removed, this amino acid penetrates hair's inner layer to deeply repair.
Full Ingredient List
AQUA / WATER / EAU
● GLYCERIN ●PROPYLENE GLYCOL
●
●
●
●
●
●
●
●
●
●
●
●
● QUATERNIUM-80
●
●
●
●
●
Key Ingredients
Citric Acid
An organic acid that acts from core to surface to deeply eliminate calcium overdose, neutralising dullness and stiffness
Glycine
Once calcium is removed, this amino acid penetrates hair's inner layer to deeply repair.
How To Dramatically Reverse Persistent Damage?
Kérastase discovered the reason behind damage that keeps coming back: CALCIUM!
3x
More calcium is absorbed with damaged hair as it is more porous (vs healthy hair), leading to a calcium overdose
PERSISTENT
Damage happens when calcium sneaks in-between keratin chains, breaking their links, making hair rigid, stiff and easy to break
BUILD-UP
Of calcium on the outside makes hair rough and dull
Première Addictive Scent
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
Première Addictive Scent
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
PDP Slot 1 Section
PDP Image Carousel
PDP Section FAQ
Frequently Asked Questions
What is Concentré Décalcifiant Ultra-Réparateur ?
Pre-shampoo treatment to decalcify* and repair all types of damaged hair. A professional-grade concentration of pure acids to decalcify* and dramatically repair persistent damage. Penetrates deep into the hair to free it from calcium overdose*, reverses stiffness and dullness, while reconnecting broken links between keratin chains*. As a result, hair is stronger, healthier-looking, and shinier - as if renewed.
Why is Concentré Décalcifiant Ultra-Réparateur used before the shampoo?
Shampoos, like other haircare products, have also a coating effect that will protect the hair fiber but at same time make it harder for our actives to penetrate. By applying the Concentré on wet hair before the shampoo we can maximise the active penetration on the hair.
What is the leave-in time?
Leave it on for 5 minutes. Don’t rinse and layer Première Bain directly on top to maximize efficacy. Rinse.
What is the quantity that is recommended to be used?
15ml to 25ml, according to your hair length (equivalent of 1 to 2 tablespoons).
Can Concentré Décalcifiant Ultra-Réparateur be used/applied alone?
To maximize efficacy is always recommended to use with the Bain Première layered on top
PDP Slot 1 Section 
