Kérastase Résistance Sérum Extentioniste – Scalp & Hair Growth-Activating Strength Serum
Available in Canada at Curious Salons
For
Weakened, slow-growing, or breakage-prone hair needing stronger roots, healthier lengths, and support for continuous, resilient growth from scalp to tip.
Description
A revitalizing step toward longer, stronger hair. Kérastase Résistance Sérum Extentioniste is a highly concentrated scalp and hair serum designed to energize the roots, strengthen fragile fibres, and support healthier, more consistent growth. With a lightweight, fast-absorbing fluid texture, it nourishes the scalp while reinforcing the lengths, helping reduce breakage and promote visibly longer, more resilient hair over time.
Powered by the exclusive Creatine R™ Complex and Ceramides, this targeted serum improves fibre integrity, restores smoothness, and supports the scalp’s optimal environment for growth. Perfect for anyone working toward longer hair — especially those experiencing breakage from heat styling, colouring, or Canada’s dry climate — it creates a clear path toward stronger, healthier, more confident lengths.
Who It’s For
Ideal for fragile, slow-growing, or breakage-prone hair. Suitable for all hair types and safe for colour-treated hair.
What It Does
• Energizes and strengthens the scalp for healthier growth
• Reinforces the hair fibre to reduce breakage
• Supports longer, smoother, more resilient lengths
• Softens, hydrates, and improves manageability
• Creates an ideal foundation for consistent, healthy growth
• Leaves the scalp refreshed and the hair revitalized
When To Use
Use 2–3 times per week on dry or towel-dried scalp. Ideal as part of your Extentioniste strengthening routine.
How To Use
Apply 2–3 pipettes directly to the scalp, section by section.
Gently massage to encourage absorption.
Do not rinse.
Style as usual.
Key Ingredients
• Creatine R™ Complex – Reinforces internal structure and supports stronger growth
• Ceramides – Protect and smooth the fibre, reducing breakage
• Taurine – Helps maintain a healthy, energized scalp environment
Fragrance
A bright, invigorating blend of fresh citrus, clean florals, and soft woods — uplifting, modern, and beautifully empowering.
Full Ingredient List
Aqua/Water/Eau, Creatine R Complex, Ceramides, Taurine, Alcohol Denat., Glycerin, Fragrance (Parfum), Linalool, Limonene, Citronellol, Hexyl Cinnamal, Benzyl Salicylate.
Why We Love It
Because it nurtures your growth journey from the root. This strengthening serum protects fragile fibres, energizes the scalp, and encourages longer, healthier, beautifully resilient hair — a luxurious ritual for those who dream of length without compromise.
Visit us in the Salon for your personal Kérastase Fusio Treatment for a healthy hair and scalp.

