Kérastase Fondant Extentioniste Length Strengthening Conditioner – Strengthen Damaged Hair & Seal Split Ends for Longer Hair with Amino Acids

Product Overview

Kérastase Fondant Extentioniste Length Strengthening Conditioner is a specialized daily conditioner designed to strengthen damaged hair lengths and seal split ends, promoting the appearance of longer, healthier hair. Part of the Extentioniste system, this conditioner works in synergy with the corresponding shampoo and treatments to deliver visible results. Infused with amino acids and ceramides, it provides essential nutrients to reinforce the hair fiber from within, while its lightweight formula detangles without weighing hair down.

Key Features and Benefits

• Strengthens Damaged Lengths: The amino acid complex helps rebuild and fortify weakened hair, reducing breakage and split ends.
• Seals Split Ends: Ceramides help seal the cuticle, preventing further splitting and giving ends a smooth, polished finish.
• Detangles Easily: The rich, creamy texture glides through hair, reducing tangles and minimizing breakage during combing.
• Promotes Longer-Looking Hair: By protecting lengths and minimizing damage, hair is able to grow longer and retain its length.
• Lightweight Hydration: Provides moisture without heaviness, suitable for fine to medium hair types.
• Salon-Quality Results: Trusted by professionals, Kérastase delivers high-performance haircare for visible transformation.

How to Use

After shampooing with the Extentioniste shampoo, apply a generous amount of the conditioner to towel-dried lengths and ends. Leave on for 2-3 minutes to allow the active ingredients to penetrate. Rinse thoroughly. For best results, use consistently as part of your daily haircare routine. Can be used in combination with the Extentioniste leave-in treatment for added protection.

Who It Is For

This conditioner is ideal for anyone with damaged, fragile, or over-processed hair that struggles to grow long. It suits all hair types, especially those with fine to medium texture, and is perfect for individuals seeking to reduce breakage, split ends, and maintain length. Whether you have color-treated, heat-styled, or naturally fragile hair, this conditioner helps restore strength and resilience.

Why Choose This Product

Kérastase is a leading professional haircare brand known for its scientific approach and high-performance formulas. Fondant Extentioniste Conditioner is backed by years of research into hair biology and uses proven ingredients like amino acids and ceramides to target damage at the source. Unlike generic conditioners that only coat the hair, this formula works to rebuild the hair fiber from within. Customers report noticeable improvements in hair strength, reduced shedding, and the ability to grow longer hair without constant breakage. The lightweight feel makes it suitable for daily use without buildup, and the pleasant fragrance leaves hair smelling fresh.

Technical Details

• Size: 6.8 oz (200 ml)
• Key Ingredients: Amino acids, ceramides
• Product Type: Rinse-out conditioner
• Hair Type: All hair types, especially damaged or fragile
• Usage: Daily