Kérastase Résistance Fondant Extentioniste 1000 ml – Professional strengthening conditioner for long hair

The Kérastase Résistance Fondant Extentioniste 1000 ml is the professional salon-size conditioner ideal for strengthening long, fragile and sensitized hair, visibly improving fiber quality.

Designed for those who want stronger, easier-to-detangle hair that is more resistant to breakage, this conditioner acts on the lengths to make them softer, more compact and protected, without weighing them down.

The 1000 ml salon size is perfect for frequent use and for those seeking long-lasting professional performance.

Strengthening conditioner for long, damaged hair

Long hair tends to weaken at the ends. The Fondant Extentioniste helps to:

Improve detangling

Makes combing easier, reducing the risk of breakage.

Reinforce the hair fiber

Supports the hair's internal structure.

Reduce split ends and fragility

Helps protect sensitized lengths.

Key benefits

• ✔️ Professional strengthening conditioner

• ✔️ Ideal for long, fragile hair

• ✔️ Improves elasticity and strength

• ✔️ Softer, more manageable hair

• ✔️ Helps reduce breakage

• ✔️ Professional 1000 ml size

Ceramides, Creatine R and Malic Acid Technology

The advanced formula combines targeted active ingredients for hair strength:

• Ceramides: strengthen and protect the fiber

• Creatine R: improves strength and elasticity

• Malic Acid: helps consolidate the hair's internal structure

Ingredient lists may be updated. We recommend always checking the product packaging for the most up-to-date information.

How to use

1. After shampooing, apply to washed, towel-dried hair.

2. Distribute evenly through lengths and ends.

3. Gently massage.

4. Leave on for 3–5 minutes.

5. Rinse thoroughly.

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

Professional recommendation

For a complete anti-breakage routine, use together with the Bain Extentioniste 1000 ml and follow with the Sérum Extentioniste to maximize the strength of the lengths.

Recommended for

• Long hair with split ends

• Damaged or treated hair

• Fragile hair that breaks easily

• Those who want stronger, healthier lengths

FAQs – Frequently asked questions

1. Does it weigh down fine hair?

No, the texture is lightweight and does not weigh hair down.

2. Does it help with split ends?

It helps reduce the breakage that leads to split ends.

3. Is it suitable for frequent use?

Yes, it can be used at every wash.

4. Can it be used on chemically treated hair?

Yes, it is ideal for sensitized hair.

5. Do I need to use it with the shampoo from the same line?

For optimal results the full Résistance Extentioniste routine is recommended.

6. Is the 1000 ml size suitable for home use too?

Yes, it's perfect for those who want a convenient, long-lasting size.

Product specifications

• Brand: Kérastase

• Line: Résistance Extentioniste

• Size: 1000 ml

• Type: Professional strengthening conditioner

• Manufacturer: L’Oréal – 14, Rue Royale 75008 Paris

• Email: servizioconsumatorikerastase.corpit@loreal.com