Thickening Serum Thickening Serum

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

2 bottles

best seller

Thickening Serum

Name: Thickening Serum
Brand: Luxéol
SKU: LUX25_PFN_80630FR-2
Price: 77.4 EUR
Availability: InStock
Rating: 4.1 (1353 reviews)

100 ml

+42% thickness from the 1st use*
Long-lasting effect*
Hair thicker, stronger
Hair radiant and nourished

Quantity

RECOMMENDED

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

BEST PRICE

3 bottles

-6%

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

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

Your complete routine with:

Favourite Thickening Protocol

A complete routine to restore thickness and softness to fine hair from the 1st use.*

-9%

~~86,70 EUR~~ 78,80 EUR

Favourite Thickening Routine - In&Out

Discover an In & Out routine that combines a food supplement and cosmetic treatments to restore thickness, strength and radiance to fine hair.*

-9%

~~136,50 EUR~~ 124,20 EUR

Your expert A question about this product?

The Thickening Serum, integrated into the protocol, thickens your hair by +42% from the 1st use*

Fine hair, lacking thickness?

This serum is from the Thickening protocol that provides +42% more thickness to your hair from the 1st use with a lasting effect*

Its formula combines red algae extract to strengthen the fibre, hyaluronic acid to hydrate, and hydrolysed rice protein to protect the hair.

Hair is shiny, soft and radiant with beauty.*

For optimal results, opt for the Thickening Protocol Must-Have!

Proven efficacy

Silicone-free

97% naturally derived ingredients

Made in France

CLINICAL RESULTS

Fine hair, lacking thickness?

This serum is from the Thickening protocol that provides +42% more thickness to your hair from the 1st use with a lasting effect*

Its formula combines red algae extract to strengthen the fibre, hyaluronic acid to hydrate, and hydrolysed rice protein to protect the hair.

Hair is shiny, soft and radiant with beauty.*

For optimal results, opt for the Thickening Protocol Must-Have!

LABORATORY TEST RESULTS

Proven efficacy

Increases hair thickness by 42%*

An immediate and lasting effect*
The Thickening Protocol for Normal Hair consists of a shampoo, a mask and a serum. This protocol was the subject of a study ex-vivo, that is to say on strands of hair that were initially collected, which made it possible to measure a proven efficacy on hair thickness gain: +42% from the very first use, as well as a lasting effect*.

View the laboratory test result and justifications

Laboratory test results and justifications

*Ex-vivo test, 25 strands, 42% after immediate use (shampoo + mask + serum). Lasting effect: +45% after 16 applications.
Free from sulphated surfactants.

CONSUMER RESULTS

A formula approved by testers

A usage test was carried out on 70 volunteers. After 28 days of use, 2 to 3 times per week, using the Thickening Protocol Must-Have (Shampoo + mask + Serum), testers observed moisturised, stronger, nourished and lightweight hair.

A strengthened, soft and nourished hair fibre

87% find their hair moisturised
83% find that using the routine makes detangling and styling easier
84 % find their hair nourished
77% find their hair softer
74% find their hair silky and lightweight

A pleasant formula to apply

Serum

A fluid formula that adds shine and lightness, and reduces frizz.
89 % find the texture fluid and lightweight
84 % notice that the product does not weigh hair down with grease
79% find that the serum makes hair supple and lightweight

Information about visuals and before/after(*)

Information about visuals and before/after

*Illustrations of results obtained with the range's products, following the recommended usage instructions. Individual results may vary.

INGREDIENTS

Hyaluronic Acid

Hyaluronic acid is known for moisturising, replumping, and protecting the hair fibre.

Hydrolysed Rice Protein

Extracted from rice, it offers both moisturising and protective properties for the scalp and hair fibre.

Red algae extract

Improves hair quality, bringing strength, thickness, and vitality.

Ingredients list

Aqua, Glycerin, Sodium Hyaluronate, Palmaria Palmata Extract, Arginine, Hydrolyzed Rice Protein, Aloe Barbadensis Leaf Juice Powder, Inulin, Parfum, Pentylene Glycol, Phenethyl Alcohol, Glyceryl Caprylate, Carbomer, Sodium Hydroxide, 1,2-Hexanediol, Levulinic Acid.

USAGE INSTRUCTIONS

FAQ

Which hair types is Luxéol Thickening Serum suitable for?

The Thickening Serum has been specially formulated for fine hair.

How long does it take to see effects after use?

Our study demonstrated an increase in hair thickness from the 1st use, lasting after several applications.

Does Luxéol Thickening Serum contain silicones?

No, Luxéol Thickening Serum does not contain silicones.

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

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

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

The product information sheet relating to the environmental qualities and characteristics of Luxéol Thickening Serum 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 portions of fruit 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 labels 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% manufactured in France, with the exception of the nail care and special volume products. Free from sulphated surfactants.

²: Total number of Luxéol consumer reviews recorded as of 08/04/2026: 83,760, from all sources combined (luxeol.com and third-party platforms).

³: Excluding subscriptions. See our T&Cs

⁴: Summer sales from 24 June 2026: -34% across the entire site with code SOLDES34, while stocks last and excluding subscriptions.
1 special volume free from €69 of purchases before applying a promotional code.

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

Needs

Product types

Hair types

Travel size & Accessories

Thickening Serum

Your complete routine with:

Favourite Thickening Protocol

Favourite Thickening Routine - In&Out

The Thickening Serum, integrated into the protocol, thickens your hair by +42% from the 1st use*

CLINICAL RESULTS

LABORATORY TEST RESULTS

Proven efficacy

Increases hair thickness by 42%*

CONSUMER RESULTS

A formula approved by testers

A strengthened, soft and nourished hair fibre

A pleasant formula to apply

Serum

INGREDIENTS

Ingredients list

USAGE INSTRUCTIONS

Precautions of use

FAQ

Which hair types is Luxéol Thickening Serum suitable for?

How long does it take to see effects after use?

Does Luxéol Thickening Serum contain silicones?

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

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

Discover also:

Hair diagnostic