THE PREMIÈRE DUAL-ACTION RITUAL TO REPAIR FIBER POROSITY
Kérastase Première Sérum Filler Fondamental is a lightweight leave-in treatment for the inner repair of all types of porous damaged hair, leaving it glossy and supple.
The Porosity Problem: Damaged hair acts like a sponge, absorbing 3x more calcium from hard water. This "overdose" makes the fiber stiff, brittle, and perpetually frizzy.
Dual-Action Repair: This serum fills the fiber to reinforce internal strength while sealing the cuticles to neutralize porosity.
Total Protection: By closing the hair scales, it creates a shield against calcium buildup, humidity, and heat up to 230°C.
The Results: Frizz is eliminated for 72 hours*, leaving hair glossy, supple, and perfectly protected.
For maximum results, use as the final sealing step after the Première Concentré Ultra Réparateur, Bain Décalcifiant Réparateur, and Mask Filler Réparateur.
*72H ANTI-FRIZZ - Instrumental test
BENEFITS
Smooths Hair
Protects from Heat
Reduces Porosity
Smooths Frizz
3X SMOOTHER*
2X SOFTER*
99% STRONGER HAIR*
INFUSED WITH 10 MILLION OF AMINO-ACID MOLECULES TO REPAIR YOUR HAIR INSTANTLY**
*Instrumental Test
**Glycine molecules
THE PREMIÈRE DUAL-ACTION RITUAL TO REPAIR FIBER POROSITY
Kérastase Première Sérum Filler Fondamental is a lightweight leave-in treatment for the inner repair of all types of porous damaged hair, leaving it glossy and supple.
The Porosity Problem: Damaged hair acts like a sponge, absorbing 3x more calcium from hard water. This "overdose" makes the fiber stiff, brittle, and perpetually frizzy.
Dual-Action Repair: This serum fills the fiber to reinforce internal strength while sealing the cuticles to neutralize porosity.
Total Protection: By closing the hair scales, it creates a shield against calcium buildup, humidity, and heat up to 230°C.
The Results: Frizz is eliminated for 72 hours*, leaving hair glossy, supple, and perfectly protected.
For maximum results, use as the final sealing step after the Première Concentré Ultra Réparateur, Bain Décalcifiant Réparateur, and Mask Filler Réparateur.
*72H ANTI-FRIZZ - Instrumental test
BENEFITS
Smooths Hair
Protects from Heat
Reduces Porosity
Smooths Frizz
3X SMOOTHER*
2X SOFTER*
99% STRONGER HAIR*
INFUSED WITH 10 MILLION OF AMINO-ACID MOLECULES TO REPAIR YOUR HAIR INSTANTLY**
*Instrumental Test
**Glycine molecules
Before the end, protect against breakage for porous damaged hair. This system deeply repairs the hair from the inner layer and strengthens the hair for lasting results.
Step 1: Apply on towel-dried hair
Step 2: Leave-In
Step 3: Blow-dry and style
BEFORE / AFTER
See results on different hair types.
Illustration of the contemplated results obtained after applying:
Kérastase discovered the reason behind damage that keeps coming back: CALCIUM!
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 results, broken links between keratin chains are reconnected, dramatically reducing breakage.
KEY INGREDIENTS
Peptide
A chain of amino acids that refills hair surface with matter.
Glycine
Once calcium is removed, this amino acid penetrates hair's inner layer to deeply repair.
AQUA / WATER / EAU
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● BEHENTRIMONIUM CHLORIDE
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● GLYCINE ●TRIDECETH-6
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PREMIÈRE
How to dramatically reverse persistent damage?
Kérastase discovered the reason behind damage that keeps coming back: CALCIUM!
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 results, broken links between keratin chains are reconnected, dramatically reducing breakage.
Peptide
A chain of amino acids that refills hair surface with matter.
Glycine
Once calcium is removed, this amino acid penetrates hair's inner layer to deeply repair.
AQUA / WATER / EAU
●
●
●
●
●
●
●
●
●
●
●
● BEHENTRIMONIUM CHLORIDE
●
● GLYCINE ●TRIDECETH-6
●
●
●
●
●
●
●
●
●
●
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FRAGRANCE
TOP NOTES
CITRUS ACCORD WITH HAPPY MANDARIN
HEART NOTES
DELICATE AND SILKY PREMIUM FLOWERS
BOTTOM NOTES
ENVELOPING RICH AND SUBTLE WOODY FACETS
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.
PORTOFINO SUMMER
TOP NOTES
CITRUS ACCORD WITH HAPPY MANDARIN
HEART NOTES
DELICATE AND SILKY PREMIUM FLOWERS
BOTTOM NOTES
ENVELOPING RICH AND SUBTLE WOODY FACETS
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.
Eco Stamps SVG + Tag
Kérastase has been committed to a beauty without animal testing for more than 30 years
20% Recycled Glass*
*except cap and pump
Vegan Formula*
*no animal derived ingredients
Made in a factory using 100% Renewable Energy*
*In the previous calendar year. Find more information in the L'Oréal Universal Registration
PDP Section FAQs
FREQUENTLY ASKED QUESTIONS
What is Sérum Filler Réparateur?
Repairing anti-frizz filler serum for all types of damaged hair.
This lightweight Serum works to repel humidity, deeply nourish and lock out frizz.
It protects hair against heat tools.
Fills fiber surface with matter to recreate softer and smoother hair.
What is the texture of Sérum Filler Réparateur?
White, balmy texture.
How often Sérum filler fondamental can be used?
You can use it before each blow-dry.
Does Sérum filler fondamental need to be rinsed?
No need to rinse it.
What are the Claims of Sérum filler fondamental?
3X SMOOTHER HAIR*
2X SOFTER HAIR*
99% STRONGER HAIR*
72H ANTI-FRIZZ*
HAIR PROTECTED FROM HEAT, UP TO 230°C*
*Instrumental test
PDP Section Related Articles
DISCOVER RELATED ARTICLES
HOW DOES PREMIERE HELP YOU REMOVE POROSITY AND RECLAIM YOUR NATURAL TEXTURE?
Between breakage, loss of definition, and increased porosity, the transition phase toward restoring your hair’s natural texture can be discouraging. Don’t lose heart, though the science behind the Première line works wonders on the hair fiber.
Luxury Haircare for Healthy Strands: The Ultimate Routines to Rescue Damaged Hair
Healthy hair can help us to exude confidence and beauty, so we want to take good care of it! However, many factors can wreak havoc on our tresses, causing damage that leaves us with brittle strands, split ends, dullness, and frizz.
HOW DOES PREMIERE HELP YOU REMOVE POROSITY AND RECLAIM YOUR NATURAL TEXTURE?
Between breakage, loss of definition, and increased porosity, the transition phase toward restoring your hair’s natural texture can be discouraging. Don’t lose heart, though the science behind the Première line works wonders on the hair fiber.
Luxury Haircare for Healthy Strands: The Ultimate Routines to Rescue Damaged Hair
Healthy hair can help us to exude confidence and beauty, so we want to take good care of it! However, many factors can wreak havoc on our tresses, causing damage that leaves us with brittle strands, split ends, dullness, and frizz.
