Kérastase Resistance Bain Extentioniste

Kérastase Resistance Bain Extentioniste is a professional shampoo formulated to strengthen damaged lengths, reduce hair breakage, and promote healthy growth. It is suitable for those with long, sensitized, colored, or chemically treated hair that requires structural reinforcement.

What it is

A strengthening shampoo from Kérastase's Resistance Extentioniste line, designed to protect and extend the life of your hair lengths. It acts on the hair fiber from within, reducing fragility and breakage.

Who it's for

Suitable for those with long hair or who want to grow it, with damaged, weakened, colored, or frequently chemically treated lengths.

Benefits

• Reduces hair breakage by up to 89%*
• Strengthens the structure of the lengths
• Promotes hair growth
• Leaves hair soft and manageable
• Suitable for daily use

*Results tested on hair treated with the complete Extentioniste routine.

Active Ingredients

• Hyaluronic Acid – hydrates the hair fiber and maintains elasticity
• Ceramide R – reconstructs and seals damaged cuticles
• Vitamin B5 (Panthenol) – nourishes and strengthens the lengths
• Green Tea Extract – antioxidant action, protects the scalp

How to use

1. Apply to wet hair, distributing from roots to ends.
2. Gently massage the scalp for a few minutes.
3. Rinse thoroughly.
4. Repeat if necessary.
5. Follow with conditioner or mask from the Extentioniste line for optimal results.

Result

Stronger hair, less prone to breakage, with visibly healthier and shinier lengths from the very first applications. With continued use, growth is more even and ends are less frayed.

Complementary products

For a complete Extentioniste routine, combine this shampoo with:

• Kérastase Resistance Fondant Extentioniste – strengthening conditioner for lengths
• Kérastase Resistance Masque Extentioniste – intensive restructuring mask
• Kérastase Resistance Serum Extentioniste – leave-in serum for ends
• Kérastase Resistance Extentioniste Thermique – heat protection pre-styling
• Kérastase Extentioniste Kit – complete line kit

FAQ

Can I use it every day?
Yes, the formula is gentle and suitable for daily use.

Does it also work on colored hair?
Yes, it is formulated for colored and chemically treated hair.

What is the difference between 250ml and 500ml?
The content is identical, only the size changes. The 500ml is more convenient for prolonged use.

Should it be used with other products from the line?
The best results are obtained with the complete Extentioniste routine, but it can also be used alone.

Is it suitable for fine hair?
Yes, the formula does not weigh hair down. It is suitable for all types of long hair or hair that tends to break.

Technical Details

• Brand: Kérastase
• Line: Resistance Extentioniste
• Product type: Strengthening shampoo
• Available sizes: 250ml, 500ml
• Hair type: Long, damaged, colored, sensitized
• Usage: Daily
• Made in: France