• Cair Fortifying Hair Serum
  • Cair Fortifying Hair Serum
  • Cair Fortifying Hair Serum
  • Cair Fortifying Hair Serum
Hair growth
4.9

Cair Fortifying Hair Serum

Hyaluronic Acid + Caffeine Complex + Fermented Raspberry Extract - 100 ML

$112
$112

Payment in 3 instalments available

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Description

Taking care of your scalp is essential in order to have beautiful hair. Try our fortifying hair serum: your best ally in stimulating the vitality of your scalp and bringing health and shine to your hair. Rich in skincare active ingredients and pre-biome, this fortifying serum for sensitive hair is alcohol-free: it respects the microbiota and helps rebalance the capillary ecosystem. From the very first use, your hair is hydrated and stronger!

100ml - about 2 months of use

Yuka rating: 72/100 (Good)

How to use
How to use Fortifying Hair Serum ?

To promote the vitality and longevity of your hair, apply before each shampoo. For an intensive one-month treatment, leave on overnight 1 to 2 times a week.

Apply the serum directly to the roots of the hair. Cover the entire scalp using the directional spray, lifting the strands.

Gently massage to create a light emulsion with the sebum to detoxify and enhance the penetration of active ingredients*. Leave on for 10 to 15 minutes or overnight for an intensive treatment. Rinse thoroughly and then proceed with your shampoo
* in the superficial layers of the epidermis.

Key ingredients
99% ingredients of natural origin
35% rice water: hydrates*, remineralizes, restores strength and vitality to the scalp.
Fermented raspberry extract (rich in AHAs): enhances shine, hydration*, and radiance.
Hyaluronic acid: absorbs and retains a significant amount of water, ensuring optimal hydration* levels (even in very dry environments), stimulates cellular cohesion, and maintains skin firmness.
Lactic acid, in synergy with phytic acid: gently exfoliates.
Caffeine complex: stimulates and energizes hair growth, protects hair health, and improves microcirculation.
Prebiome complex: maintains a balanced microbiome to protect against hair loss, ensuring a healthy and lasting bacterial equilibrium. Free from silicone, artificial coloring, sulfate-based surfactants, alcohol, and inert ingredients.
*of the upper layers of the epidermis.

Ingredients list
Oryza Sativa (Rice) Bran Water*, Aqua (Water), Vitis Vinifera (Grape) Fruit Water*, Glycerin, Propanediol, Pentylene Glycol, Phyllostachys Bambusoides Extract, Caffeine, Caprylyl/Capryl Glucoside, Algin, Parfum (Fragrance), Polyglyceryl-10 Isostearate, Sodium Hyaluronate, Citric Acid, Lactic Acid, Sodium Benzoate, Phytic Acid, Tetramethyl Acetyloctahydronaphthalenes, Sodium Hydroxide, Corylus Avellana (Hazelnut) Leaf Extract*, Sarcosine, Lindera Strychnifolia Root Extract, Sodium Dilauramidoglutamide Lysine, Calcium Chloride, Hydroxypropyl Guar, Rubus Idaeus (Raspberry) Fruit Extract, Lactobacillus Ferment Lysate, Hexamethylindanopyran, Potassium Sorbate, Levulinic Acid, Taraxacum Officinale (Dandelion) Leaf Extract, Citronellol, Citrus Limon (Lemon) Peel Oil, Limonene, Geraniol, Hexyl Cinnamal, Pinene

*Ingredients from organic farming

Efficacy
From the very first use, 95%* of women report that their hair feels hydrated, without feeling weighed down. After 28 days of use, volunteers notice increased hair density, greater volume, and hair that appears thicker. 100%* of women also report a healthier, detoxified scalp. Our Fortifying Serum helped the women who tested it achieve stronger, less damaged, and visibly shinier hair.

*Efficacy test conducted on 22 volunteers under dermatological supervision, across all hair types and sensitive scalps, over a period of 28 days.

FEEDBACK / REVIEWS AFTER 28 DAYS OF USE:

“My hair is healthier and in better condition”
“Ready to make this product part of my routine”
“My hair has regained its vitality”

Pro tips
Mask and Serum: A Complementary Routine
These two treatments can be used together, as they target different needs.
Before shampooing, apply the serum to your roots, massaging the scalp for better effectiveness, while the mask is applied to the lengths and ends to nourish and repair damaged hair. Leave on for 10 to 15 minutes before rinsing.

Delivery and returns
We work with FedEx, and our standard shipping times are 4 to 6 days.

All shipments to the United States now include customs duties and fees. You will therefore not have to pay any customs charges upon delivery: the amount paid at checkout is final and covers all shipping-related costs.

If you purchased a product on our website, you have 14 days from the delivery date to make a return through our dedicated platform (shipping costs are at your expense) or directly in-store. We only accept returns; exchanges are available only for orders placed from mainland France, Luxembourg, and Belgium. Please select the integrated customs clearance option—customs fees are at your expense.

Please note: for hygiene reasons, Cair products unfortunately cannot be exchanged and are only eligible for return. A returned product will only be accepted if it is in its original packaging and unused.
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Overall rating: 4.9375 / 5 from 80 reviews.

AI Generated Review Summary

Le Sérum Fortifiant Cair is a hair serum designed to enhance scalp health, providing hydration and strength to hair. It is formulated with skincare actives and prebiotics, free from alcohol, and suitable for sensitive scalps. Users report reduced itching, dandruff, and fungus, and many appreciate the included brush.

Summary topics

  • Scalp Health (40%): A substantial number of customers stated that they no longer have itching, dandruff, or fungus.
  • Brush Quality (18%): Many customers brought up that they love the brush and find it to be the best for their hair.

Review topics: ["feels","hair","texture","scent","scalp","results","volume","brush","effect","serum","discovery","routine","detangling","use","cair"].

Review highlights

  • "Strengthens the hair well" — Véronique B.
  • "Love this product for my hair all of them and the brush is the best !!!" — Alessia
  • "I love both the 1 and the round brush for my blow-drys." — Michel C.

Reviews

Un excellent soin pour fortifier les cheveux

"J’aime beaucoup ce sérum ! Il laisse mes cheveux plus doux, brillants et soignés. Sa texture est agréable et il ne laisse pas les cheveux gras. Une belle découverte que je recommande volontiers."

— Méhanya B. (5/5)

Refreshing

"This lovely smelling new idea in scalp and hair care is something I am enjoing and may make a difference!"

— Mary H. (5/5)

Bouleversement capillaire 😀

"J'utilise la routine Cair, mes cheveux sont soyeux, propres et doux et les rituels de véritables plaisirs. Je recommande La bonne brosse et la routine Cair."

— Maud S. (5/5)

Bon produit

"Je l’applique la veille au soir ou le matin. Ce n’est pas gras. Mon cuir chevelu n’est plus irrité. Et il sent bon"

— laurence b. (5/5)

Schöne Flaschen mit tollen Inhalt

"Schon nach der ersten Anwendung hatte ich duftige, glänzende Haare und ein gutes Gefühl meiner Kopfhaut."

— Caroline (5/5)

Routine Cair

"La routine est ultra complète, le packaging est très qualitatif et soigné, la sensorialité des produits est dingue (on retrouve l’odeur signature dans tous les soins). C’est simple, depuis que j’utilise les produits Cair (couplés à l’utilisation quotidienne de La Bonne Brosse), je remarque que mes cheveux sont beaucoup plus brillants et semblent en bien meilleure santé. La possibilité de commander des petits formats pour les voyages + les recharges pour ne pas « sur consommer » fait de cette marque un exemple en terme d’éthique. Bravo et merci les filles ✨"

— Jeanne R. (5/5)

Love it!!!! Don’t get tire!!!!

"Enamorada de los productos! Todos! Los amooooooo"

— Niurka O. (5/5)

The best serum ever

"I love the floral scent and after washing my hair, it feels silky soft."

— Andrea H. (5/5)

La baronne brosse 1

"Je l’adore je ne peux plus m’en passer à tel point que j’ai commandé la petite pour en avoir toujours une avec moi. J’ai les cheveux fin et long qui avait tendance à faire des queues de rat et c’est fini grâce à la bonne brosse. J’ai aussi plus de volume et ils regraissent moins vite. C’est devenu mon rituel matin et soir."

— Jenna T. (5/5)

Fácil de aplicar

"Fácil de aplicar y se nota el pelo con las fuerza"

— Kessia N. (5/5)

Q&A