Kérastase Résistance Extentioniste Mask 200ml for fragile, damaged and breakage-prone hair

Strengthening mask for fragile hair that wants to grow stronger

La Kérastase Résistance Extentioniste Mask 200ml is a professional treatment designed for fragile, sensitized and breakage-prone hair. Its highly nourishing formula helps strengthen the hair fiber, making hair more resilient and supporting the growth of healthy, strong lengths.

Ideal for those who want longer hair but suffer from split ends, breakage and weakened fiber, this mask works deeply to repair and strengthen from root to tip.

Thanks to its creamy texture, it leaves hair soft, shiny and easy to detangle without weighing it down.

Benefits of the Kérastase Extentioniste mask

Strengthens the hair fiber

The formula with Creatine R helps improve the internal structure of the hair, increasing resistance to breakage.

Repairs lengths and split ends

Maleic Acid penetrates the fiber to reinforce and seal damaged lengths.

Promotes longer, healthier hair

By reducing breakage, hair is able to grow stronger and more uniform.

Soft, shiny hair

Nourishes and smooths the fiber, leaving hair silky, manageable and radiant.

Who it's recommended for

The Kérastase Résistance Extentioniste mask is indicated for:

• Fragile and sensitized hair

• Hair damaged by chemical treatments

• Hair that breaks easily

• Those who want to grow their hair longer

• Hair with split ends

• Lengths that are weakened or frayed

Perfect for those who want to strengthen hair during the growth phase.

Key ingredients

Creatine R

A reinforcing complex that improves hair elasticity and strength.

Maleic Acid

An active ingredient that penetrates the hair fiber, helping to seal and strengthen lengths.

Directions for use

1. Apply to washed, towel-dried hair.

2. Distribute the product through the lengths and ends, avoiding the roots.

3. Massage gently.

4. Leave on for 5 minutes.

5. Emulsify by adding a little water.

6. Rinse thoroughly.

Professional tips

For best results:

• Use with the Kérastase Résistance Extentioniste shampoo.

• Always apply to lengths and ends, not on the scalp.

• Ideal to use 1–2 times a week to progressively strengthen hair.

Ingredients (INCI)

Aqua / Water, Cetearyl Alcohol, Amodimethicone, Behentrimonium Methosulfate, Behentrimonium Chloride, Ethanolamine, Maleic Acid, Phenoxyethanol, Isopropyl Alcohol, Benzoic Acid, Trideceth-6, Hydroxypropyl Guar, Amyl Cinnamal, Hexyl Cinnamal, Benzyl Alcohol, Cetrimonium Chloride, Linalool, Hydroxycitronellal, Citronellol, Limonene, Benzyl Cinnamate, Creatine, 2-Oleamido-1,3-Octadecanediol, Parfum / Fragrance.

Ingredient lists may be updated periodically. We recommend always checking the product packaging to verify the most up-to-date ingredient list.

Warnings

In case of contact with the eyes, rinse immediately and thoroughly.

Product distributed by:
L’Oréal
14, Rue Royale 75008 Paris
servizioconsumatorikerastase.corpit@loreal.com

Frequently Asked Questions (FAQ)

Does this mask weigh down fine hair?

No, when applied only to lengths and ends it nourishes without weighing hair down.

How many times a week should you use the Extentioniste mask?

We recommend using it 1–2 times a week, depending on the level of hair damage.

Is it suitable for treated or bleached hair?

Yes, it is ideal for chemically treated, bleached or sensitized hair.

Does it really help hair growth?

It does not accelerate natural growth, but reduces breakage, allowing hair to reach greater lengths.

Can I use it if I have very dry hair?

Yes, it helps to nourish and strengthen dry, fragile hair.

Should it also be applied to the roots?

No, it is recommended to apply it only to lengths and ends.