Première Anti-Frizz Filler Serum
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Product Description
Due to its heightened porosity, processed hair absorbs three times more calcium from water as compared to untreated hair, resulting in calcium overdose, both internally and externally within the hair shaft. The Kérastase Sérum Filler Fondamental Hair Serum provides a dual-action solution: its lightweight, balm-like texture seals the cuticles, safeguarding the hair's surface, while simultaneously replenishing the fibre and reinforcing hair strength. This protects your hair from the damaging effects of calcium found in hard water, as well as from humidity and heat up to 230°C. Say goodbye to damage & frizz as your hair becomes smooth, supple, easy to style and effortlessly manageable.
For even more care for your bleached or damaged hair, combine with the rest of the Première range. Try the maximum power of the layering technique: Start with the pre-shampoo treatment, Kérastase Concentré Décalcifiant Ultra-Réparateur, then without rinsing off the Concentré, use the shampoo, Kérastase Bain Décalcifiant Réparateur on top. Follow with the conditioner or mask before applying Kérastase Sérum Filler Fondamental as a final repair step.
For enhanced care of your bleached or damaged hair, complement it with the other products from the Première range. Experience the full potential of the layering technique: Begin with the pre-shampoo treatment, Kérastase Concentré Décalcifiant Ultra-Réparateur. Next, without rinsing the Concentré, apply the Kérastase Bain Décalcifiant Réparateur . Follow this up with the Masque Filler Réparateur Hair Mask and conclude with Sérum Filler Fondamental Hair Serum as the final repairing step.
Bottle made of 95% recycled plastic*
*excluding cap, colorant, and additive
Country Of Origin:- Spain.
Manufacturer & Packer Name and Address:- L’Oréal S.A, Productos Capilares, Calle López Bravo, 78, Polígono Industrial Villalonquéjar, 09001 Burgos, Spain.
Importer name and Address:- L'Oréal India Pvt Ltd, A Wing, 8th Floor, Marathon Futurex, N M Joshi Marg, Lower Parel, Mumbai, India, 400013.
100 ml - Expiry - November 2025
30 ml - Expiry - May 2025
Product Description
Due to its heightened porosity, processed hair absorbs three times more calcium from water as compared to untreated hair, resulting in calcium overdose, both internally and externally within the hair shaft. The Kérastase Sérum Filler Fondamental Hair Serum provides a dual-action solution: its lightweight, balm-like texture seals the cuticles, safeguarding the hair's surface, while simultaneously replenishing the fibre and reinforcing hair strength. This protects your hair from the damaging effects of calcium found in hard water, as well as from humidity and heat up to 230°C. Say goodbye to damage & frizz as your hair becomes smooth, supple, easy to style and effortlessly manageable.
For even more care for your bleached or damaged hair, combine with the rest of the Première range. Try the maximum power of the layering technique: Start with the pre-shampoo treatment, Kérastase Concentré Décalcifiant Ultra-Réparateur, then without rinsing off the Concentré, use the shampoo, Kérastase Bain Décalcifiant Réparateur on top. Follow with the conditioner or mask before applying Kérastase Sérum Filler Fondamental as a final repair step.
For enhanced care of your bleached or damaged hair, complement it with the other products from the Première range. Experience the full potential of the layering technique: Begin with the pre-shampoo treatment, Kérastase Concentré Décalcifiant Ultra-Réparateur. Next, without rinsing the Concentré, apply the Kérastase Bain Décalcifiant Réparateur . Follow this up with the Masque Filler Réparateur Hair Mask and conclude with Sérum Filler Fondamental Hair Serum as the final repairing step.
Bottle made of 95% recycled plastic*
*excluding cap, colorant, and additive
Country Of Origin:- Spain.
Manufacturer & Packer Name and Address:- L’Oréal S.A, Productos Capilares, Calle López Bravo, 78, Polígono Industrial Villalonquéjar, 09001 Burgos, Spain.
Importer name and Address:- L'Oréal India Pvt Ltd, A Wing, 8th Floor, Marathon Futurex, N M Joshi Marg, Lower Parel, Mumbai, India, 400013.
100 ml - Expiry - November 2025
30 ml - Expiry - May 2025

Key Words
Repairing – Strengthening – Remove Calcium – Damaged Hair

Heat Protection

Anti-Frizz

Smooth Hair
Product Benefits
✔ Hair is protected from heat, up to 230°C*
✔ Fights humidity
✔ Provides deep nourishment
✔ Eliminates frizz
✔ Reveals softer and smoother hair
✔ THERMOPROTECTION 230°C*
✔ 2X LESS SPLITENDS**
**Instrumental test after 1 application of the serum
Step 1: Apply the repairing anti-frizz hair serum on towel-dried hair..
Step 2: Gently distribute the serum evenly, focusing on the mid-lengths and ends.
Step 3: Leave-In. Blow-dry and style as usual.
BENEFITS
Repairing – Strengthening – Remove Calcium – Damaged Hair

Heat Protection

Anti-Frizz

Smooth Hair
✔ Hair is protected from heat, up to 230°C*
✔ Fights humidity
✔ Provides deep nourishment
✔ Eliminates frizz
✔ Reveals softer and smoother hair
✔ THERMOPROTECTION 230°C*
✔ 2X LESS SPLITENDS**
**Instrumental test after 1 application of the serum
BEFORE / AFTER
See results on different hair types.
Illustration of the contemplated results obtained after applying:



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
Pure Acids Concentration
Free hair from calcium overdose with citric acid, an organic acid that acts from core to surface, to neutralize 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
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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.

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

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
Pure Acids Concentration
Free hair from calcium overdose with citric acid, an organic acid that acts from core to surface, to neutralize 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 replenishes the surface of the hair with essential substances.

Glycine
After calcium is removed, this amino acid penetrates the hair's inner layer to deeply repair.
- AQUA / WATER / EAU
- ●
- ●
- ●
- ●
- ●
- ●
- ●
- ●
- ●
- ●
- ●
- ● BEHENTRIMONIUM CHLORIDE
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- ●
- ●
- ●
- ●
- ●
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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.
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

THEY TRIED IT, THEY LOVED IT
Get inspired by these Première transformations. #ReigniteYourInnerStrength
THEY TRIED IT, THEY LOVED IT
Get inspired by these Première transformations. #ReigniteYourInnerStrength
FREQUENTLY ASKED QUESTIONS
What is Kérastase Sérum Filler Fondamental?
The Sérum Filler Fondamental is a reparative hair serum for frizzy hair. It is suitable for all hair types, particularly damaged ones. This lightweight damage repair hair serum combats humidity, deeply moisturises and prevents frizz. By replenishing the hair surface with essential matter, it transforms hair into a softer and smoother texture.
What is the texture of Kérastase Sérum Filler Fondamental?
YThe Sérum Filler Fondamental for damaged hair features a white cream-gel -like texture. This lightweight, luxurious consistency spreads effortlessly through the hair. It coats each hair effectively, sealing in moisture and nourishment for enhanced repair and protection against damage.
How often can I use Sérum Filler Fondamental?
You can use the Sérum Filler Fondamental before each blow-dry.
Does Sérum Filler Fondamental need to be rinsed?
No, the Sérum Filler Fondamental Hair Serum does not require rinsing. You apply it, leave it on, blow dry and style your hair as usual.
What does the Sérum Filler Fondamental claim to do?
Sérum Filler Fondamental is a serum for damaged hair that boasts a range of impressive claims to elevate your hair care routine. It shields your hair from heat damage, protecting it up to temperatures of 230°C*. *Instrumental test after 1 application of the serum

COMPLETE YOUR ROUTINE
PREMIÈRE
At Kérastase, we believe in the power of unique experiences. Discover the products of this range and maximize your results!
Première Decalcifying & Repairing Pre-Shampoo Concentrate
A dual-action decalcifying and repairing pre-shampoo treatment for damaged hair. The Concentré Décalcifiant Ultra-réparateur removes calcium and reinforces hair strength, leaving it stronger, smoother, and shinier.
Première Decalcifying & Repairing Shampoo
A rich, dual action hair damage repair shampoo that works inside and out to remove calcium and repair all types of damaged hair.
Première Anti-Breakage & Repairing Mask
An anti-breakage & repairing hair mask for damaged hair that repairs & restores strength for all types of hair damage
DISCOVER RELATED ARTICLES

Water - and more specifically the calcium within - can cause damage to your hair. The secret to defending your hair fibers? Decalcification.
READ NOW
It’s no longer enough to wash, condition and go. Want your best hair ever? It’s time to learn to layer (trust us, it’s a game-changer).
READ NOW
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.
READ NOW
Water - and more specifically the calcium within - can cause damage to your hair. The secret to defending your hair fibers? Decalcification.
READ NOW
It’s no longer enough to wash, condition and go. Want your best hair ever? It’s time to learn to layer (trust us, it’s a game-changer).
READ NOW
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.
READ NOW- y_2025, m_5, d_21, h_21
- bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
- cp_1, bvpage1
- co_hasreviews, tv_0, tr_3
- loc_en_IN, sid_KER_00281, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
- clientName_kerastase-in
- bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
- CLOUD, getReviews, 6ms
- reviews, product