Kerastase Resistance Serum Extentioniste Scalp & Hair Serum is a lightweight treatment designed for all hair types to strengthen from the roots to the tips, promoting healthier growth and greater resilience. Enriched with ceramides and antioxidant-rich camellia leaf, it nourishes the scalp and strands for visibly stronger hair. This serum is an effective hair growth serum that supports overall hair health.

Key Benefits and Features
  • Strengthening: Strengthens from roots to tips for enhanced resilience and reduced breakage, supporting longer-looking hair. The Kerastase Resistance Serum Extentioniste is particularly effective for those experiencing thinning hair.
  • Nourishing Hydration: Ceramides and camellia leaf extract deliver essential moisture to scalp and fiber, helping maintain balanced hydration. This lightweight hair serum is perfect for all hair types, including color-treated hair.
  • All-Hair-Types Friendly: Formulated to suit every hair type and texture, including color-treated or stressed hair, without weighing down. This makes it an excellent choice for anyone looking to buy Kerastase Resistance Extentioniste.
  • Scalp Health: Nurtures the scalp to create an optimal environment for healthy growth and comfort. A healthy scalp is crucial for effective hair growth and resilience.
  • Lightweight & Fast-Absorbing: Non-greasy serum that absorbs quickly, leaving hair feeling smooth and weightless. This serum is ideal for those who prefer a lightweight hair serum that does not leave residue.
Who It’s For

This serum is ideal for anyone seeking stronger, longer hair and a healthier scalp environment. It’s suitable for all hair types, including color-treated or stressed strands, and is especially helpful for those experiencing breakage or thinning. For fine or thin hair, start with a small amount to avoid buildup; for thick or textured hair, apply a slightly larger amount to ensure even distribution. The Kerastase Resistance Serum Extentioniste is a versatile product that caters to diverse hair needs.

Key Ingredients
  • Ceramides – restore the moisture barrier and strengthen the hair shaft, helping protect against dryness and breakage. This ingredient is essential for anyone looking to improve hair resilience.
  • Camellia Leaf Extract – rich in antioxidants, nourishes the scalp and hair, supporting a healthier look and feel. This makes it a key component in effective hair care products.
How to Use
  • Dispense 2–3 pumps of serum onto fingertips.
  • Apply directly to the scalp and roots, concentrating on areas showing thinning or breakage.
  • Massage gently to distribute the serum from scalp to the ends of the hair.
  • Do not rinse. Style as usual. For best results, pair with Kerastase Resistance Extentioniste shampoo and conditioner as part of your regimen. This combination enhances the overall effectiveness of the hair growth serum.

Specifications

Brand
Kérastase
Size
50ml
Format
Serum
Hair concerns
Damaged, Breakage, Weak Hair, Split Ends, Thinning
Suitable for
All hair types,Fine,Thick,Thin,Curly,Straight,Colored,Weakened,Damaged
Key ingredients
Essential oil,Olive oil

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Why our stylists rate it
From the Partners Hair team
Kérastase Resistance Sérum Extentioniste is a leave-in scalp and hair serum for weakened hair seeking healthy growth and length. Part of the Kérastase Resistance range. Energising scalp treatment that strengthens hair from the root while protecting the lengths from breakage.

Best for: hair growing through to longer lengths that struggles with breakage or slow visible growth; scalps that feel sensitised or in need of soothing alongside hair-strengthening care; the leave-in scalp step in the Extentioniste long-hair routine paired with Bain Extentioniste, Fondant Extentioniste, and Masque Extentioniste.
Less suited to: hair primarily concerned with reconstruction of severely damaged fibre (use Resistance Sérum Thérapiste — designed for very damaged lengths with heat protection); hair primarily concerned with shine and smoothness on healthy hair (use Elixir Ultime L'Huile Originale); hair loss specifically (use Kérastase Spécifique Stimuliste or Genesis range); colour-treated blonde hair (use Blond Absolu Cicaplasme or Cicanuit).

Key actives:
- Créatine R Complex — Creatine + Ceramide; reinforces internal hair fibre structure and reseals the cuticle
- Soothing scalp ingredients — calm and protect the scalp environment for healthy hair growth
- Lipid blend — supports the scalp's protective barrier without leaving residue
- Non-greasy, lightweight texture — suitable for use on the scalp without weighing roots down

Benefits:
- Strengthens hair from the root to the lengths to support healthy growth
- Reduces breakage along the lengths that prevents hair from reaching longer lengths
- Creates a defensive barrier on the scalp for a healthier hair growth environment
- Soothes scalp itchiness and sensitivity
- Non-greasy formula — leaves no residue, weight, or stickiness

How to use: Apply directly to the scalp on clean, towel-dried hair. Using the pipette, dispense 2 pipettes for fine hair or 4 for thick hair, positioning the pipette at the root in sectioned lines from front to back. Massage into the scalp with fingertips. Distribute any remaining product through the lengths. Do not rinse. Use 2–3 times per week.

Format: 50ml scalp serum with pipette applicator.

Authorised Kérastase stockist — 100% authentic, sourced from the official South African distributor. Free delivery on orders over R390 across South Africa.
Delivery without the guesswork

Spend R390 and delivery is on us. Orders under R390 are delivered for R67. We normally pack within 1 working day, with delivery in 2–5 working days depending on your location.

Changed your mind? You have 7 days after receiving your order to request a return. Email hello@partnershair.co.za to get started.

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