Favourite Thickening Routine - In&Out Favourite Thickening Routin...

~~136,50 EUR~~ 124,20 EUR -9%

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Favourite Thickening Routine - In&Out

Name: Favourite Thickening Routine - In&Out
Brand: Luxeol
Price: 124.2 EUR
Availability: InStock
Rating: 4.2 (1422 reviews)

Thickening Food Supplement

3 months – 90 Capsules

Thickening Shampoo

200 ml

Thickening Mask

200 ml

Thickening Serum

100 ml

In : Thicker, fuller hair, more hair mass*
No effect on body hair*
Out : +42% thickness from the 1st use*
Softer, shinier and stronger hair, without weighing it down

Quantity

1 routine

-9%

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

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Your complete routine with:

Thickening Routine - FINE, NORMAL HAIR - 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%

~~129,50 EUR~~ 117,80 EUR

Thickening Routine - FINE, DRY HAIR - In&Out

Discover a routine combining an in supplement & out treatments to restore thickness and softness to fine hair.*

-9%

~~126,50 EUR~~ 115,10 EUR

Your expert AI

A question about this product?

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

Discover the In & Out Favourite Thickening Routine, a routine bringing together three essential treatments from the range and the Thickening Dietary Supplement, designed for all hair types.

The Thickening Dietary Supplement works from the inside for thicker hair and increased hair mass.*
Tested and approved by 107 people, with 98% overall product satisfaction.*
Its formula promotes hair strengthening and helps maintain normal hair*
Results: thicker, fuller and silkier hair day after day.*
3-month programme — 1 capsule per day.

The Thickening Protocol (shampoo, mask and serum) completes the action by increasing hair thickness by +42% from the very first use*.
Formulated with red algae extract, hyaluronic acid and hydrolysed rice protein, it hydrates, nourishes and protects the fibre without weighing it down.
Hair regains softness, shine and lightness, while visibly gaining thickness and strength.

Results: stronger, thicker and healthy-looking hair, thanks to a combined action from the inside and outside.*

View justifications(*)

Justifications

Food supplement: Luxéol Thickening
*Thicker hair
Fuller-looking
Increased hair volume
No effect on body hair
Silkier

Tested and approved in a usage test conducted in 2025 by an independent laboratory on 107 people for 3 months, at a rate of one capsule per day, % satisfaction:

95% find their hair thicker
96% find their hair fuller-looking
90% notice an increase in hair volume
95% confirm no effect on body hair
94% find their hair silkier
97% find their hair more beautiful
98% are satisfied with the product

*Strength for fine hair:
Helps strengthen hair:

Thanks to nettle and field horsetail, which help strengthen hair.

*Contributes to the maintenance of normal hair:
Hair health:

Thanks to biotin, zinc, and selenium, which contribute to the maintenance of normal hair.

Cosmetics: Luxéol Thickening Protocol
*Test ex vivo, 25 strands, % thickness immediately after use (shampoo + mask + serum). Long-lasting effect: +45% after 16 applications.
Free from sulphate surfactants.

Cosmetic Thickening Protocol:
A consumer use test was carried out on 70 volunteers. After 28 days of use, 2 to 3 times per week, of the thickening protocol must-have (shampoo + mask + serum), testers observed hydrated, stronger, nourished and lightweight hair.

Thickening Dietary Supplement
A consumer use test was carried out on 107 testers. After 3 months of using the thickening dietary supplement, at a rate of one capsule per day, testers found their hair thicker, more beautiful, fuller, silkier and with greater hair mass.

Cosmetics free from silicones and sulphates*

Cosmetics with proven efficacy

Capsule of plant origin

Made in France

ACTIONS

In Actions: Thickening dietary supplement

Dietary supplement based on field horsetail, nettle, collagen peptides, methylsulfonylmethane (MSM), amino acids, vitamins and minerals.

Contributes to the maintenance of normal hair.
Thanks to Vitamin B8

Helps strengthen hair.
Thanks to nettle

Promotes the fortification, strengthening and growth of hair.
Thanks to field horsetail

Contributes to the maintenance of normal hair.
Thanks to Selenium

Contributes to normal cysteine synthesis.
Thanks to Vitamin B6

Contributes to the maintenance of normal hair.
Thanks to Zinc

Out Actions: The thickening protocol increases hair thickness by +42%*

An immediate and long-lasting effect*
The Thickening Protocol consists of a shampoo, a mask and a serum. This Protocol was the subject of a study ex-vivo, i.e. On initially collected hair strands, which made it possible to measure proven efficacy on hair thickness gain: +42% from the first use as well as a long-lasting effect*.

CONSUMER RESULTS

A formula approved by testers

A usage test was conducted on 70 volunteers. After 28 days of use, 2 to 3 times a week, of the Thickening Protocol Must-Have (Shampoo + Mask + Serum), testers observed hydrated, stronger, nourished, and lightweight hair.

Thickening Protocol Must-Have cosmetic: A strengthened, soft, and nourished hair fibre

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

Shampoo

A formula with 95% ingredients of natural origin that cleanses without weighing hair down.

77 % notice a light and pleasant foam
84 % find that the product gently cleanses hair while enveloping it in a delicate fragrance.
73% find that their hair is easy to detangle and style
86 % find that the product does not weigh hair down

Mask

A creamy textured formula that brings shine, softness, and lightness

93 % find that the product detangles and brings softness to the hair
84% find that the product brings lightness and suppleness to the hair
86 % find that the mask does not weigh hair down
81 % find their hair shiny

Serum

A fluid formula that adds shine and lightness while reducing frizz.

89 % find the texture fluid and lightweight
84 % notice that the product does not make hair greasy
79% find that the serum leaves hair supple and lightweight

Thickening Dietary Supplement

A usage test was conducted on 107 testers. After 3 months of using the Thickening Dietary Supplement, at a rate of one capsule per day, testers found their hair to be thicker, more beautiful, fuller, silkier, and with increased hair density.

Thicker hair

95 % find their hair thicker
96 % find their hair fuller
90 % notice an increase in hair density

More beautiful and silky hair

97 % find their hair more beautiful
94 % find their hair silkier
95 % confirm the absence of any effect on body hair

Information on visuals and before/after(*)

Information on visuals and before/after

*Illustrations of results obtained with the products in the range, in accordance with the usage instructions. Individual results may vary.

INGREDIENTS

Ingrédients IN

Nettle

Urtica dioica
Nettle, from the Urticaceae family, promotes hair strengthening. The leaves are particularly known for their content of mineral salts and more specifically silica.

Vitamin B8

D-biotin
An essential water-soluble vitamin contributing to the normal metabolism of macronutrients and to the maintenance of normal hair.

Field Horsetail

Equisetum arvense L.
A common annual plant found in temperate regions, growing on moist soils. Its horsetail shape is characteristic.

Selenium

Selenium is an important trace element for human body metabolism. It is known to contribute to the protection of cells against oxidative stress and to the maintenance of normal hair and nails.

Vitamin B6

Vitamin B6 is an essential water-soluble vitamin contributing to the normal synthesis of cysteine and to regulating hormonal activity.

Zinc

Zinc is an important trace element for human body metabolism. It is known to contribute to the protection of cells against oxidative stress and to the maintenance of normal hair and nails.

Ingrédients OUT

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

Thickening Shampoo

Aqua, Cocamidopropyl Betaine, Glycerin, Sodium Methyl Cocoyl Taurate, Sodium Chloride, Lauryl Glucoside, Sodium Hyaluronate, Palmaria Palmata Extract, Arginine, Hydrolyzed Sweet Almond Protein, Hydrolyzed Rice Protein, Starch Hydroxypropyltrimonium Chloride, Parfum, Coconut Acid, Phenethyl Alcohol, Glyceryl Caprylate, Lactic Acid, Sodium Lactate, Urea, Citric Acid, Pentylene Glycol, p-Anisic Acid, Levulinic Acid, 1,2-Hexanediol, Sodium Benzoate.

Thickening Mask

Aqua, Stearyl Alcohol, Cetyl Alcohol, Prunus Amygdalus Dulcis Oil, Glycerin, Brassicamidopropyl Dimethylamine, Sodium Hyaluronate, Palmaria Palmata Extract, Hydrolyzed Rice Protein, Arginine, Butyrospermum Parkii Butter, Cocos Nucifera Oil, Hydrolyzed Sweet Almond Protein, Parfum, Lactic Acid, Pentylene Glycol, Levulinic Acid, Glyceryl Caprylate, Sodium Benzoate, Potassium Sorbate.

Thickening Serum

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.

Thickening Food Supplement

Hydroxypropyl methylcellulose (plant-based capsule shell) ; horsetail aerial parts powder (Equisetum arvense) ; nettle leaf extract (Urtica dioica) ; methylsulfonylmethane ; marine collagen peptides (FISH, MOLLUSCS AND CRUSTACEANS) ; zinc citrate ; L-cysteine hydrochloride ; L-ascorbic acid (vitamin C) ; L-methionine ; L-serine ; anti-caking agent: magnesium salts of fatty acids ; pyridoxine hydrochloride (vitamin B6) ; D-biotin (vitamin B8) ; sodium selenite.
Plants: European origin.

Nutritional information

**RI: Reference Intakes

	Quantity per 1 capsule	% RI**
Field horsetail aerial parts powder	75 mg	-
Nettle leaf extract	75 mg	-
Marine collagen peptides	50 mg	-
Methylsulfonylmethane (MSM)	50 mg	-
L-cysteine	25 mg	-
L-methionine	25 mg	-
L-serine	25 mg	-
Vitamin C	24 mg	30%
Zinc	9.7 mg	97%
Vitamin B6	5.6 mg	400%
Biotin (vitamin B8)	500 µg	1000%
Selenium	67 µg	121%

USAGE INSTRUCTIONS

Thickening shampoo:

Shake well before use. Apply 2 to 3 times a week to wet hair.
Leave on, then rinse.

Thickening mask:

Apply 2 to 3 times a week after the Thickening shampoo. Distribute over the lengths and ends, leave on for 5 minutes, then rinse. Finish by applying the Thickening serum..

Then apply Luxéol thickening serum.

Thickening serum:

Apply 2 to 3 times a week, to dry hair
on the lengths and ends, after shampooing and the mask. Do not rinse.

Thickening dietary supplement

Take 1 capsule per day with a large glass of water for 90 days.

Precautions of use

Thickening Protocol

Avoid contact with eyes. In case of contact with eyes, rinse thoroughly with clean water. Store away from heat.

Thickening Dietary Supplement

For adults only.
Not recommended in cases of cardiac or oedematous renal insufficiency.
Not recommended for pregnant or breastfeeding women.
Food supplements should be used as part of a healthy lifestyle and should not be used as substitutes for a varied and balanced diet.
Keep out of reach of young children.
Do not exceed the recommended daily dose.
Store in a cool, dry place away from light.
CANNOT BE COMBINED WITH: LUXÉOL Hair Strength & Growth Gummies, LUXÉOL COMPLEXE KÉRATINE AND LUXÉOL ZINC 15, AND LUXÉOL Post-Pregnancy Dietary Supplement.

Net weight

Thickening Food Supplement: 43.6g (3-month box)

FAQ

What hair type is the Luxéol In & Out Thickening Routin Must-Have suitable for?

The In & Out Thickening Routin Must-Have has been specially formulated for fine hair.

How long does it take to see results after using the In & Out Thickening Routin Must-Have?

For the cosmetic routine, our study ex vivo demonstrated an increase in hair thickness right from the 1st use, lasting after multiple applications.
For the Thickening Dietary Supplement: 95% of users were satisfied after 1 month of use and 98% after 3 months of use.*

Does Luxéol Thickening Dietary Supplement have an effect on body hair?

No, Luxéol Thickening Dietary Supplement has no effect on body hair: 95% of people found that the product has no effect on body hair.*

What is the difference between Luxéol Thickening Dietary Supplement and Luxéol Growth & Strengthening?

Luxéol Growth & Strengthening is a dietary supplement that helps make hair stronger and longer over time, while Luxéol Thickening dietary supplement targets hair thickness.

Is the In & Out Thickening Routin Must-Have suitable for pregnant and/or breastfeeding women?

Yes, the Thickening cosmetic routine is suitable for pregnant and breastfeeding women.
The Thickening Dietary Supplement is not recommended for pregnant or breastfeeding women.

Where can I find the product sheet relating to the environmental qualities and characteristics of the In & Out Thickening Routin Must-Have?

The product sheet relating to cosmetic environmental qualities and characteristics can be found here,
those for the food supplements can be found here.