Fortifying Serum Fortifying Serum

~~79,80 EUR~~ 77,40 EUR -3%

2 bottles

New

Fortifying Serum

Name: Fortifying Serum
Brand: Luxeol
SKU: LUX26_PFN_81200FR-2
Price: 77.4 EUR
Availability: InStock
Rating: 4.5 (7414 reviews)

100 ml

64x more resistant*
Proven anti-breakage action*
Coats hair without weighing it down
Stronger, supple and more resilient hair

Quantity

2 bottles

-3%

~~79,80 EUR~~ 77,40 EUR

*Lot de 2 : 38,70€ l'unité au lieu de 39,90€

1 bottle

39,90 EUR

3 bottles

-6%

~~119,70 EUR~~ 112,50 EUR

*Lot de 3 : 37,50€ l'unité au lieu de 39,90€

SUMMER DEALS⁴
-30% avec le code ETE26 + cadeau dès 50€

SUMMER DEALS⁴
-30% avec le code ETE26
+ cadeau dès 50€

Your complete routine with:

Strengthening Routine - In&Out

Brittle hair, weakened by brushing and external aggressors?

-9%

~~119,50 EUR~~ 108,70 EUR

Strengthening Routine

Brittle hair, weakened by brushing and external aggressors?

-9%

~~79,70 EUR~~ 72,50 EUR

Your expert AI

A question about this product?

Fragile, brittle or brush-sensitised hair?

Discover the Fortifying Serum from the Fortifying Protocol, specially formulated to strengthen the hair fibre and act as a shield against external aggressions.

Thanks to a dual ex vivo & in vivo study, this protocol demonstrated up to 64x more resilient hair* and a reduction in hair breakage*. The fibre appears stronger, more robust, and better protected daily.

The Fortifying Serum coats the hair without making it greasy or weighing it down. A true hair care treatment, it delivers softness and suppleness for more resilient and visibly stronger hair.

Tested and approved, it helps protect hair from external aggressions, reduces breakage, and leaves hair feeling stronger and more resilient.

Formulated with 97% ingredients of natural origin and silicone-free, it strengthens hair day after day*.

Results: stronger and more resilient hair, with a sheathed, soft fibre and no greasy finish.

Proven efficacy

Silicone-free

97% naturally derived ingredients

Made in France

CLINICAL RESULTS

Discover the Fortifying Serum from the Fortifying Protocol, specially formulated to strengthen the hair fibre and act as a shield against external aggressions.

The Fortifying Serum coats the hair without making it greasy or weighing it down. A true hair care treatment, it delivers softness and suppleness for more resilient and visibly stronger hair.

Tested and approved, it helps protect hair from external aggressions, reduces breakage, and leaves hair feeling stronger and more resilient.

Formulated with 97% ingredients of natural origin and silicone-free, it strengthens hair day after day*.

Results: stronger and more resilient hair, with a sheathed, soft fibre and no greasy finish.

LABORATORY TEST RESULTS

DUAL STUDY: EX VIVO & IN VIVO

The Fortifying Protocol consists of a shampoo, a conditioner and a serum designed to strengthen the hair fibre and reduce breakage.

✦ 1ST STUDY EX VIVO

ELONGATION TEST

The elastic properties of the hair were evaluated using a dynamometer to measure its strength before breaking.

64 times stronger*

Hair shows improved mechanical strength and a more supple fibre.

✦ 2ND STUDY IN VIVO

EVALUATION OF THE NUMBER OF BROKEN HAIRS

The evaluation of broken hairs was carried out after brushing under standardised conditions.

-60% breakage*

Hair is more resistant to brushing and visibly less brittle.

View laboratory test results and justifications(*)

Laboratory test results and justifications

*64x more resistant: Test ex vivo, comparative test on 15 locks vs 15 placebo locks, 16 applications of the Protocol (Luxéol Fortifying shampoo + conditioner + serum)

Proven anti-breakage action: -60% breakage after 56 days, 44 subjects, 2x/week of the Protocol.

CONSUMER RESULTS

A formula approved by testers

A usage test was carried out on 44 subjects after 56 days of use, at a rate of 2 times per week of the Fortifying Protocol (shampoo + conditioner + serum). Testers observed stronger, healthier hair that was less prone to breakage and protected from external aggressors.

Stronger and protected hair

97 % notice less hair on the hairbrush or in the bath/towel
93 % find that the protocol acts as a shield against external aggressors
90 % find their hair stronger and more resistant
90 % find their hair healthier

Strengthened and hydrated hair

90 % find that the protocol reduces hair breakage
84 % find their hair hydrated
100 % say they adopt the routine on a daily basis

Serum: coated and more resilient hair

90 % find that the serum coats the hair
90 % feel their hair is stronger and more resilient
79 % find that the product does not make hair greasy
72 % find that the product does not weigh the hair down

Sensoriality: a true hair care protocol

95 % find that the protocol is a true hair care treatment with a gentle and pleasant fragrance

View justifications(*)

Consumer test results and justifications

*Usage test, 56 days, 44 subjects, 2x/week with the Strengthening Protocol (shampoo + conditioner + Luxéol Strengthening serum).

INGREDIENTS

Hydrolysed wheat protein

Hydrolysed wheat protein is known for helping to strengthen and coat the hair fibre. It helps to smooth the cuticles, protect the hair and make styling easier.

Hydrolysed soy protein

Hydrolysed soy protein is used to help strengthen weakened hair and improve its resistance to breakage. It also helps to make brushing easier and to bring more softness and suppleness to the hair fibre. It is particularly suited to fortifying hair care products seeking both a technical and sensory benefit.

Panthenol

Panthenol is known for helping to hydrate and strengthen the hair fibre. It helps to improve the suppleness and softness of hair, while contributing to protecting it from external aggressors.

Niacinamide

Niacinamide is used to help promote stronger, healthier hair from the root.

Ingredients list

Aqua, Glycerin, Diglycerin, Caesalpinia Spinosa Gum, Hydrolyzed Wheat Protein, Hydrolyzed Soy Protein,
Niacinamide, Panthenol, Hydrogenated Starch Hydrolysate, Sucrose Laurate, Sucrose Dilaurate,
Sucrose Trilaurate, Parfum, Citric Acid, Sodium Hydroxide, Gluconolactone, Sodium Benzoate, Potassium Sorbate, Calcium Gluconate.

USAGE INSTRUCTIONS

FAQ

Which hair type is the Luxéol Fortifying Protocol suitable for?

The Fortifying Protocol has been specially formulated for fragile and brittle hair.

How long does it take to see results after use?

Our studies have demonstrated an increase in hair strength after application of the 3 references: shampoo, conditioner and serum. This effect is long-lasting, for up to 16 applications.*

Does the Luxéol Fortifying Serum contain silicones?

No, the Luxéol Fortifying Serum does not contain silicones.

Is the Luxéol Fortifying Serum suitable for pregnant and/or breastfeeding women?

Yes, this serum is suitable for pregnant and/or breastfeeding women.

Is the Luxéol Fortifying Serum suitable for children?

Yes, this serum is suitable for children aged 3 and above.

Where can I find the product sheet relating to the environmental qualities and characteristics of the Luxéol Fortifying Serum?

The product sheet relating to environmental qualities and characteristics can be found here.

100% MADE IN FRANCE¹

CLINICAL RESULTS

HAIR CARE EXPERT

+150 PRODUCT TESTS¹

CSR COMMITTED LABEL
(AFNOR)

SATISFIED OR
REFUNDED³

+27 BEAUTY AWARDS

Discover also:

Hair diagnostic

Discover your personalised hair care routine in just a few clicks!

START MY DIAGNOSTIC

For your health, eat at least five fruits and vegetables a day - www.mangerbouger.fr

Food supplements should be used as part of a healthy lifestyle and should not be used as substitutes for a varied and balanced diet.
Luxéol is a brand of food supplements and cosmetic products primarily for hair and skin. Individual results may vary.

Information may change, please read product labelling carefully before use.

¹: +150 product tests: Total number of products tested by Luxéol (clinical studies, usage tests and ex vivo tests) across all products developed as of 18/06/2026.
+ 100 consumer tests as of 18/06/2026. Products counted individually, including when several products were evaluated in the same study.
Cosmetics and food supplements 100% made in France with the exception of the nail care and special volume. No sulphated surfactants.

²: Total number of Luxéol consumer reviews recorded as of 08/04/2026: 83760, from all sources combined (luxeol.com and third-party platforms).

³: Excluding subscriptions. See T&Cs

⁴: SUMMER DEAL: Summer promotion. 1 thickening serum free from €50 of purchases.

**: Average rating from our customer reviews on luxeol.com and Google as of 13/05/2026.

Needs

Product types

Hair types

Travel size & Accessories

Fortifying Serum

Your complete routine with:

Strengthening Routine - In&Out

Strengthening Routine

Fragile, brittle or brush-sensitised hair?

CLINICAL RESULTS

LABORATORY TEST RESULTS

DUAL STUDY: EX VIVO & IN VIVO

✦ 1ST STUDY EX VIVO

ELONGATION TEST

64 times stronger*

✦ 2ND STUDY IN VIVO

EVALUATION OF THE NUMBER OF BROKEN HAIRS

-60% breakage*

CONSUMER RESULTS

A formula approved by testers

Stronger and protected hair

Strengthened and hydrated hair

Serum: coated and more resilient hair

Sensoriality: a true hair care protocol

INGREDIENTS

Ingredients list

USAGE INSTRUCTIONS

Precautions of use

FAQ

Which hair type is the Luxéol Fortifying Protocol suitable for?

How long does it take to see results after use?

Does the Luxéol Fortifying Serum contain silicones?

Is the Luxéol Fortifying Serum suitable for pregnant and/or breastfeeding women?

Is the Luxéol Fortifying Serum suitable for children?

Where can I find the product sheet relating to the environmental qualities and characteristics of the Luxéol Fortifying Serum?

Discover also:

Hair diagnostic