Hair Gain Extract

Hair Gain Extract

 (4200)

Our highly effective, award-winning Extract is the cornerstone of our tailored treatment regimen. Each extract formulation is customised to your individual requirements and optimised over the course of your treatment to maximise the health of your scalp and promote thicker, fuller, more vibrant hair with regular use.

$86.00
$86.00 $102.00
SAVE 15% Sold out

BUNDLE & SAVE

Hair Gain Extract

Hair Gain Extract

$86.00
$86.00 $102.00
SAVE 15% Sold out

Description

Our award-winning* Hair Gain Extract is a targeted scalp treatment that works by optimising the conditions for hair gain. By restoring the condition of the scalp, strengthening the hair at the roots, re-engaging the hairs’ follicles and stimulating regrowth, it creates the ideal environment for high-quality, sustainable hair gain. Every Extract is individually formulated for each client’s unique scalp profile. It is only suitable for certain forms of hair thinning, so take our Hair Assessment to see if you qualify for treatment.

*Awards

Marie Claire Hair Awards 2025 — Best Treatment for Thinning Hair
The Knot Award 2021 — Best Hair Growth Stimulator

Think about Extract application the same way you think about your skincare regimen.

Always apply to a clean, dry scalp for best results, allowing sufficient time for absorption into the dermis.

Shake well before using, inserting the supplied syringe directly into the bottle, to then remove your personalised dose of Extract.

Apply the prescribed amount of Extract to the scalp, taking the syringe from the hairline to the crown and repeating in rows across the width of the head.

Massage into the scalp for 30-45 seconds. Wait for a minimum of 20 minutes before applying the recommended dosage again.

The Extract should only be applied to a dry scalp, at least two hours after the hair has fully dried. The extract should be left on for a minimum of 8 hours before washing.

The Extract contains proprietary ingredients derived from burdock root, marigold, apple, sandalwood and cow's milk, alongside naturally occurring sterols, tannins, and fatty acids found in botanicals.

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  • REAL CLIENTS. REAL PROGRESS.

    "The Extract is improving her overall hair quality and density. Not only is the pigmentation deeper, but the strands are thicker and growing longer, increasing scalp coverage."

    – Rikke, Hair Specialist


    Female, 20s, 29 Months on Extract

  • REAL CLIENTS. REAL PROGRESS.

    "My hair is incredible. Obsessed with Hårklinikken."

    – Rivaldo, Hårklinikken Client


    Male, 40s, 9 Months on Extract

  • REAL CLIENTS. REAL PROGRESS.

    "She has much more density all over. It's especially obvious along her part line, which has much more coverage."

    – Caroline, Hair Specialist


    Female, 40s, 12 Months on Extract

  • REAL CLIENTS. REAL PROGRESS.

    "I am very happy with how much my hair has grown and filled in with using the Hårkliniken products."

    - Lisa, Hårklinikken Client


    Female, 70s, 9 Months on Extract

  • REAL CLIENTS. REAL PROGRESS.

    "I started about three months ago and am already seeing positive results. I'm excited about the journey and having healthy hair grow – rather then fall. Can’t wait to see what the future brings! Thank you, Hårklinikken."

    – Jesus, Hårklinikken Client


    Male, 40s, 4 Months on Extract

    • REAL CLIENTS. REAL PROGRESS.

      "The Extract is improving her overall hair quality and density. Not only is the pigmentation deeper, but the strands are thicker and growing longer, increasing scalp coverage."

      – Rikke, Hair Specialist


      Female, 20s, 29 Months on Extract

    • REAL CLIENTS. REAL PROGRESS.

      "My hair is incredible. Obsessed with Hårklinikken."

      – Rivaldo, Hårklinikken Client


      Male, 40s, 9 Months on Extract

    • REAL CLIENTS. REAL PROGRESS.

      "She has much more density all over. It's especially obvious along her part line, which has much more coverage."

      – Caroline, Hair Specialist


      Female, 40s, 12 Months on Extract

    • REAL CLIENTS. REAL PROGRESS.

      "I am very happy with how much my hair has grown and filled in with using the Hårkliniken products."

      - Lisa, Hårklinikken Client


      Female, 70s, 9 Months on Extract

    • REAL CLIENTS. REAL PROGRESS.

      "I started about three months ago and am already seeing positive results. I'm excited about the journey and having healthy hair grow – rather then fall. Can’t wait to see what the future brings! Thank you, Hårklinikken."

      – Jesus, Hårklinikken Client


      Male, 40s, 4 Months on Extract

      “It has been such a pleasant surprise and a true joy to see my hair texture and volume improve, and to see the new growth. Almost hard to believe.”

      Rosemary M., Hårklinikken Client

      Ingredients

      • Marigold

        Soothes scalp inflammation and irritation.

      • Burdock Root

        Inhibits DHT hormone to prevent hair loss.

      • Fatty Acids

        Moisturise dry scalp to regulate sebum production.

        “No two scalps or heads of hair are the same. Therefore, each Extract is continually adapted to your unique biology.”

        LARS SKJØTH

        FOUNDER & LEAD RESEARCHER

        How to Use Hair Gain Extract

        Always apply to a clean, dry scalp for best results, allowing sufficient time for absorption into the dermis. Shake well before using, inserting syringe directly into the bottle, to then remove your personalised dose of Extract.

        Apply the prescribed amount of Extract to the scalp, taking the syringe from the hairline to the crown and repeating in rows across the width of the head.

        Massage into the scalp for 30-45 seconds. Wait for a minimum of 20 minutes before applying the recommended dosage again.

        The Extract should only be applied to a dry scalp, at least two hours after the hair has fully dried. The Extract should be left on for a minimum of 8 hours before washing.

        Frequently Asked Questions

        Your Extract formula and dosage are customised for you. Use the recommended dosage and application instructions provided by your expert Hair Specialist.​

        While our Extract is formulated with nature's finest raw materials, it does undergo a chemical fermentation process that conserves the formula and increases the potency of the natural ingredients.​

        Yes. The Extract is gentle, non-toxic and safe to use while pregnant or nursing.

        Yes. All our products, including the Extract, are safe to use on colour or chemically treated hair.

        If you’re experiencing severe irritation or redness on your scalp, have previously been diagnosed with an autoimmune scalp or hair condition, or are currently using other hair loss treatments, we advise you to consult with our Hair Specialists so we can determine if the Extract is right for you.

        “Three months later, my hair is growing at the speed of light”

        Beth Gillette, Cosmopolitan Magazine

        Trusted by the Experts

        Tried and tested by industry insiders for fuller, stronger, healthier hair.

        • “I am always excited to work with experts, and I don’t know another expert on Hårklinikken’s level regarding hair and scalp health.”

          Joanna Czech, Esthetician & Founder of Joanna Czech Skin Care

        • “One of the best things I’ve ever used for my hair."

          Nicolas Travis,           Founder of Allies of Skin

        • "I’ve been using Hårklinikken daily. As a result, my hair is now fuller and healthier than ever before.”

          Josephine Mai,           Session Hair Stylist

        • “I love how each product is designed with a specific purpose to treat and enhance hair health.”

          Dafne Evangelista,           Celebrity Colourist & Hair Stylist

        • “It's amazing to find a product that I really believe in and use myself. I stake my reputation on Hårklinikken.”

          Mira Chai Hyde,           Groomer

        • “Ever since I started using Hårklinikken, my hair’s been thicker and healthier.”

          Jonathan Paul,           Founder of Perfect Frame

        • “Not only has my part and hairline filled in, but I am in awe at the fullness, shine and change in texture.”

          Amy Rosoff Davis,           Celebrity Trainer

        • “Their natural ingredients nourish deeply, promoting not just beauty but also confidence.”

          Denis De Souza,           Colourist

        • “Hårklinikken has improved the shine and texture of my hair – and I get fewer greys! It’s truly a game-changer.”

          Gita Bass,           Make-up Artist

        • “I’m grateful for how these products nourish my hair, helping it grow stronger and longer than ever before.”

          Danielle Priano,           Celebrity Hairstylist

          Customer Reviews

          • When nothing else helped, this did!

            This product is not like any other on the market, at least that I’ve tried. It’s the first one that really made my hairdresser take notice- what are you using???? I’m so grateful to know about it. It’s kind of a pain in the butt, truth be told, I don’t always feel like doing it- but I try to do it at least once a day, and shoot for 2x a day a few days a week. Even like that, it’s been amazing for me!

            Sarah C. 

          • Already working

            It’s simple-i already see results and i just started bottle #2. You can actually see the small hairs that have grown. There’s a difference in my hair. I fell away from this company due to technical difficulties & my move and my hair paid the price for it. I’m back and I couldn’t be happier, if you can afford it, of all the things you will spend your money on in your hair journey this one WILL actually yield results.

            MaiLee P. 

          • Very Effective, Highly Recommend

            I started using Hair Gain Extract about 2 years ago and noticed improvements within 2-3 months. In addition to increased growth in areas of thinning, I noticed my scalp felt better - no more what felt like achiness in my hair follicles. It's the solution I was looking for for 20 years. I only wish I had taken good before photos.

            Natalia U. 

          • Even better results than expected !

            So my hair started thining about 5 months after I started cancer treatment. 2 years later, and still on my cancer treatment, my hair if fuller and thicker, with better coverage than I had as a teenager - thank you!

            Ian H.

          • Love this product!

            My hair was thinning because of medications and since I started using the hair gain extract my hair has started to grow back. I have tons of baby hairs and it's also made my hair feel thicker as well. I also love how it does not make your hair greasy. Such a fan!

            Andrea k.

          • Best Hair Growth product ever

            I never write reviews ! However my experience with Harklinikkin is exceptional. I’m on bottle 10, and everyone including my hairdresser has noticed improvement to thickness and texture of my hair. Thank you!

            Ian H.

          • Hair serum

            Awesome. I am on chemotherapy, and have a full head of hair, actually thicker than it was 30 years ago, thanks to this product. I have recommended to so many friends, especially those on GLP-1 products. Thank you !

            Eliane A.

          • It absolutely works for me

            After years of trying various shampoos, supplements and topicals for my scalp, I heard about this hair serum and tried it...Amazing! There was a very noticeable difference in hair growth after just 4 months, which I was able to see through comparison photos. After years of using Harklinniken, my hair has held it's improved growth rate --still working! Total relief, totally worth it.

            Corinna S.

              The Hair Gain Extract

              Our award-winning hair growth serum with 30 years of proven results. Individually formulated for each client, find out if it's right for you.

              Take Hair Assessment