Anti-Damage
Concentré Décalcifiant Ultra-Réparateur
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.
250 ml
FIND YOUR NEAREST SALONREIGNITE YOUR INNER STRENGTH.
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 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*
93% stronger hair**
*Excluding cap, colorant, and additive
**Instrumental test
KEY WORDS:


BENEFITS
Decalcifies* and dramatically repairs persistent damage.
Reverses stiffness and dullness.
Reconnects broken links between keratin chains* for an inner structure reinforcement.
REVERSE 93% HAIR DAMAGE IN 1 USE*
REPAIR HAIR BONDS
TRANSFORM YOUR HAIR IN 1 USE
*Strenghtens to reduce breakage

HOW TO USE
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
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Citric Acid An organic acid that acts from core to surface to deeply eliminate calcium overdose, neutralising dullness and stiffness. |
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Glycine Once calcium is removed, this amino acid penetrates hair's inner layer to deeply repair. |
FULL INGREDIENT LIST
AQUA / WATER / EAU • SODIUM COCOYL ISETHIONATE • DISODIUM LAURETH SULFOSUCCINATE • GLYCOL DISTEARATE • SODIUM LAURYL SULFOACETATE • SODIUM LAUROYL SARCOSINATE • GLYCERIN • PARFUM / FRAGRANCE • PPG-5-CETETH-20 • DECYL GLUCOSIDE • COCAMIDOPROPYL BETAINE • COCO-BETAINE • CITRIC ACID • DIVINYLDIMETHICONE/DIMETHICONE COPOLYMER • AMODIMETHICONE • SODIUM HYDROXIDE • POLYQUATERNIUM-7 • POLYQUATERNIUM-10 • CARBOMER • SODIUM BENZOATE • SODIUM CHLORIDE • LIMONENE • PEG-55 PROPYLENE GLYCOL OLEATE • PROPYLENE GLYCOL • SALICYLIC ACID • BENZOIC ACID • HYDROLYZED VEGETABLE PROTEIN PG-PROPYL SILANETRIOL • GLYCINE • POLYSORBATE 21 • TRIDECETH-6 • LINALOOL • C12-13 ALKETH-23 • C12-13 ALKETH-3 • CITRAL • CETRIMONIUM CHLORIDE • PHENOXYETHANOL • POTASSIUM SORBATE

HOW TO DRAMATICALLY REVERSE PERSISTENT DAMAGE?
Damaged hair is porous and absorbs 3 times more calcium from water (vs healthy hair) leading to a calcium overdose.
At each contact with water, calcium accumulates creating persistent damage. Calcium sneaks in-between keratin chains, and breaks their links, making hair rigid, stiff and easy to break.
On the outside, calcium builds-up, on the scales, making hair rough and dull.
8% PURE ACIDS CONCENTRATION
Free hair from calcium overdose with Citric Acid, an organic acid that acts from core to surface, to neutralise dullness and stiffness. Once calcium is removed, Glycine, an amino acid, penetrates hair's inner layer to deeply repair. As a result, broken links between keratin chains are reconnected, dramatically reducing breakage.

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.
Frequently Asked Questions
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At Kérastase, we believe in the power of a complete haircare routine. Discover the products of this range and maximize your results!



















