This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

Free shipping on orders over €100 (mainland France only).
hair loss diagnosis
sérum
Anti-Hair Loss Serum No.1

CART 0

Congratulations! Your order qualifies for free shipping (France only) You have $100 left to benefit from free delivery. (France only)
Sorry, looks like we don't have enough of this product.

Products
Complete your routine.
sérum shampoing et dermastamp

The Routine

$125.00 $131.00
flacon d'un sérum à côté d'un dermastamp

Duo Serum & Dermastamp No.1

$89.00 $94.00
sérum

Anti-Hair Loss Serum No.1 (Pack of 2)

$127.00 $141.00
flacon d'un shampoing

Thickening Shampoo No.1 (Pack of 3)

$101.00 $113.00
dermastamp

Dermastamp No.1 (Pack of 2)

$43.00 $47.00
Subtotal Free

Overseas territories, UK, Canada, Switzerland : customs fees may apply at arrival. These are the customer's responsibility and are not handled by HACT.

Your Cart is Empty

Continue shopping
sérum shampoing et dermastamp

The Routine

$125.00 $131.00
sérum shampoing et dermastamp

The Routine (3 months)

$269.00 $299.00
flacon d'un shampoing
femme avec shampoing
bulle qui sort d'un bouchon d'un shampoing
avis shampoing
femme qui rigole en se moussant les cheveux de derrière
ingrédients shampoing
mousse qui dégouline sur un shampoing sur du verre
shampoing qui s'écoule dans une main
femme avec shampoing
flacon d'un shampoing
femme avec shampoing
bulle qui sort d'un bouchon d'un shampoing
avis shampoing
femme qui rigole en se moussant les cheveux de derrière
ingrédients shampoing
mousse qui dégouline sur un shampoing sur du verre
shampoing qui s'écoule dans une main
femme avec shampoing

Thickening Shampoo No.1

Anti-Hair Loss - Densifies - Purifies

$38.00
Choose your plan:1 Shampoo
Liquid error (snippets/image line 112): Width must be between 1 and 5760

1 Shampoo

Liquid error (snippets/image line 112): Width must be between 1 and 5760

3 Shampoos

-11%

Developed by French experts, our Thickening Shampoo No.1 is a gentle care formula that deeply cleanses, removes impurities and excess sebum, while visibly acting against hair loss.

Made with 95% natural-origin and vegan ingredients, it is a true concentrate of proteins and vitamins, with a pH of 5.

It supports hair health from the root, while naturally restoring density, strength, and vitality to the hair.

 

Proven results: 

✓ 85% noticed thicker, fuller hair.*

✓ 95% observed a visible reduction in hair loss.*

✓ 95% observed a reduction in excess sebum, with hair appearing less oily.*

 

*A 4-week usage test was carried out on 20 women with hair prone to hair loss (3 uses per week).
List of ingredients

Concerns

flux hormonaux

Hormonal hair loss: androgenetic alopecia, PCOS, menopause

sablier temps

Telogen effluvium: seasonal, stress, fatigue, post-partum (after breastfeeding)

ligne croissance

Hair growth

prevention

Prevention

unisexe

For men & women

To combine with:

RESULTS

✓ 85% noticed thicker, fuller hair.

✓ 95% observed a visible reduction in hair loss.

✓ 95% observed a reduction in excess sebum, with hair appearing less oily.

✓ 100% felt the product perfectly delivered on its promise.

✓ 95% said they would purchase it and recommend it to a friend.

✓ 100% found the product gentle, respectful of the scalp, and that the shampoo did not weigh down the hair.

 

*A 4-week usage test was carried out on 20 women with hair prone to hair loss (3 uses per week).

INGREDIENTS
  • Emortal PepHair 3%: patented active ingredient based on pea peptides, rich in phytonutrients. It protects hair follicles from oxidative stress, stimulates cell regeneration and slows down premature hair aging, thus helping to reduce the signs of hair loss.

  • Niacinamide 2%: regulates sebum production, improves scalp microcirculation, strengthens the skin barrier and soothes irritations, promoting a healthy environment for hair growth.

  • Glycerin: intensely hydrates the scalp and hair fiber, preventing dryness while providing softness and suppleness.
BENEFITS
  • Deeply cleanses the scalp, removing excess sebum and buildup
  • Visibly improves hair density and volume
  • Provides a feeling of hydration to the scalp
  • Helps restore the scalp’s protective barrier
GOOD TO KNOW
  • Size: 200ml - 6.76 fl. oz.(1 month of use)
  • Suitable for all types of hair loss
  • Suitable for all hair types
  • Color-safe
  • Formulated by experts
  • Made in France
  • pH of 5
  • 95% of ingredients of natural origin, vegan
  • Clinically tested
  • Formulated without sulfates, parabens, silicones, artificial colors, or harmful chemicals
  • Yuka's note: 93/100
 [{"variant_id":"55663558656378" , "metafield_value":""}]

Thickening Shampoo No.1

$38.00
graphique vase science
CLINICALLY TESTED
emoji d'une planète avec une plante qui pousse dessus
ECO-RESPONSIBLE
graphique main et plante
VEGAN
icône du drapeau france
MADE IN FRANCE
graphique 95% d'ingrédients d'origines naturels
95% MINIMUM NATURALNESS
​

How does it work?

STEP BY STEP

vidéo utilisation shampoing HACT
0 1

Wet

Make sure your hair is completely wet, from roots to ends.

0 2

Apply and massage

Apply a small amount of Densifying Shampoo No.1 to wet hair, gently massaging the scalp for a deep cleanse.

0 3

Rinse

Rinse thoroughly with clean water.

0 4

Repeat

Suitable for everyday use.

TESTED AND APPROVED

VISIBLE AND MEASURED RESULTS

0 %

noticed thicker, fuller hair.

0 %

observed a visible reduction in hair loss.

0 %

observed a reduction in excess sebum, with hair appearing less oily.

0 %

felt the product perfectly delivered on its promise.

*A 4-week usage test was carried out on 20 women with hair prone to hair loss (3 uses per week).

Overall rating: 4.857143 / 5 from 70 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

J’apprécie beaucoup ce shampoing, qui

"J’apprécie beaucoup ce shampoing, qui donne un effet volumineux très appréciable quand on a les cheveux fins ! De plus il sent bon et ne laisse pas de résidus sur les cheveux"

— Rayene (5/5)

Odeur agréable qui laisse les

"Odeur agréable qui laisse les cheveux doux avec une impression de cheveux un peu plus dense. Je ne sais pas si c'est l'effet du shampoing mais depuis que je l'utilise je n'ai plus de dermite séborrhéique."

— estelle d. (5/5)

Très agréable à utiliser :

"Très agréable à utiliser : odeur délicieuse et qui rend les cheveux tous doux. La Chute s'est calmée et le volume revient petit à petit."

— AXELLE L. (5/5)

Shampoing très agréable l'odeur est

"Shampoing très agréable l'odeur est très subtile, mes cheveux sont doux redensifiés et nourris, avant de commencer j'avais pleins de cheveux cassé au dessus du crâne et la au bout de deux shampoing je n'ai plus rien merci"

— Élodie V. (5/5)

Le serum est super ne

"Le serum est super ne colle pas ne graisse pas les cheveux. Le shampooing pas mal aussi mousse bien. J'ai commencé y a 1 mois, j'ai quelques petites repousses légères."

— Karima M. (4/5)

La 1ère chose que j'ai

"La 1ère chose que j'ai remarqué c'est l'odeur de ce shampoing, il sent super bon et me fait penser aux produits de bébé. Ils laissent les cheveux tout doux, même pendant le shampoing, les cheveux ne sont pas rèches comme avec certains."

— karine e. (5/5)

Plus d’un mois que j’utilise

"Plus d’un mois que j’utilise le shampoing et le sérum, mes cheveux sont plus beaux. Le shampoing sent très bon et mes cheveux sont doux et densifiant."

— Alicia K. (5/5)

I like the shampoo, I

"I like the shampoo, I use it 2 times a week and it cleans the scalp very well"

— Alina (5/5)

Le shampoing est top et

"Le shampoing est top et il sent très bon et les cheveux sont doux"

— Severine f. (5/5)

Le shampooing sent très bon,

"Le shampooing sent très bon, je l’utilise en 2 eme shampooing. Il fait vraiment de très beaux cheveux."

— Nathalie P. (5/5)

Q&A

PATENTED INGREDIENTS

Derived from biotechnology, our active ingredients have been selected for their complementarity and systematically integrated at their most effective percentages, guaranteeing ultra-powerful formulas.

EMortal™ Pep 3%

EMortal™ Pep 3%

+23% hair density

Niacinamide 2%

Niacinamide 2%

Rebalances sebum production

Before / After

Avant
Après

mains avec shampoing

FAQ

What does the Thickening Shampoo No.1 smell like?

The Thickening Shampoo No.1 is delicately scented with musk flower, providing a pleasant experience with every use.

Can I use the Thickening Shampoo No.1 on color-treated hair?

Yes, the Thickening Shampoo No.1 is safe for color-treated hair. It is formulated without bleaching agents, sulfates, or silicones, and contains no artificial fragrance.

Are there any contraindications?

The Densifying Shampoo No. 1 is designed to suit all hair and scalp types, including color-treated and sensitive hair. If you have any specific concerns, consult a healthcare professional.

Can I use the Thickening Shampoo No.1 instead of the Anti-Hair Loss Serum No.1 for hair growth?

The Thickening Shampoo No.1 does not replace the Anti-Hair Loss Serum No.1 for hair growth. However, it helps balance the scalp microbiome, creating an optimal environment for healthy hair. We recommend using it alongside the Anti-Hair Loss Serum No.1 to maximize benefits.

Should the Thickening Shampoo No.1 be applied to the lengths as well?

The Thickening Shampoo No.1 should be applied primarily to the scalp. It is not necessary to leave it on the lengths.

How long should I leave the Thickening Shampoo No.1 on?

Leave the Thickening Shampoo No.1 on for 3 to 6 minutes before rinsing for optimal effectiveness.

How often should you wash your hair?

We recommend frequent washing to remove dirt, pollution, and styling products that can clog pores and disrupt the scalp's microbiome balance.

  • Complete your routine