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The Scalp Essentials | Hyaluronic Acid | 5% Capixyl™

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4.4
Rated 4.4 out of 5 stars
702 Reviews

The Necessary™ | Care For Your Body | Care For Your Planet

Treat Your Scalp Like Your Skin™. 

The Scalp Essentials is designed for scalp health. A healthy scalp is foundational for healthy hair. The Shampoo and The Conditioner are infused with Hyaluronic Acid, Vitamin B3, Vitamin B5 and ApiScalp to help hydrate, balance and soothe a dry, sensitive scalp. The Scalp Serum is infused with a high 1% Hyaluronic Acid concentration (7 Molecular Weights) to deliver intense hydration and 5% Capixyl™ to support visibly thicker, fuller healthier-looking hair. The Scalp Serum is a leave-in treatment. Daily use is required for results. All formulas are safe for use on the scalp. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Color-Safe. The Shampoo, The Conditioner and The Scalp Serum hold The Seal of Approval by The National Eczema Association. 3 x Full-Size.

Clinical Results | 50+ participants used The Shampoo, The Conditioner and The Scalp Serum for 12 Weeks. USA 2022. Q3.

  • 96% Said My Hair Looks Healthy
  • 96% Said My Scalp Feels Hydrated
  • 96% Said My Scalp Feels Less Itchy
  • 94% Said My Scalp Feels Less Flaky
  • 94% Said My Scalp Feels Healthy


    $100

    $108 Save $8

    Free US Shipping $75+ | Free Returns

    The Necessary™ | Care For Your Body | Care For Your Planet

    Treat Your Scalp Like Your Skin™. 

    The Scalp Essentials is designed for scalp health. A healthy scalp is foundational for healthy hair. The Shampoo and The Conditioner are infused with Hyaluronic Acid, Vitamin B3, Vitamin B5 and ApiScalp to help hydrate, balance and soothe a dry, sensitive scalp. The Scalp Serum is infused with a high 1% Hyaluronic Acid concentration (7 Molecular Weights) to deliver intense hydration and 5% Capixyl™ to support visibly thicker, fuller healthier-looking hair. The Scalp Serum is a leave-in treatment. Daily use is required for results. All formulas are safe for use on the scalp. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Color-Safe. The Shampoo, The Conditioner and The Scalp Serum hold The Seal of Approval by The National Eczema Association. 3 x Full-Size.

    Clinical Results | 50+ participants used The Shampoo, The Conditioner and The Scalp Serum for 12 Weeks. USA 2022. Q3.

    • 96% Said My Hair Looks Healthy
    • 96% Said My Scalp Feels Hydrated
    • 96% Said My Scalp Feels Less Itchy
    • 94% Said My Scalp Feels Less Flaky
    • 94% Said My Scalp Feels Healthy


      Free US Shipping $75+ | Free Returns

      SET CONTAINS

      TESTED

      Product Is:

      • Dermatologist-Tested
      • Hypoallergenic
      • Non-Comedogenic
      • EU Compliant
      • Certified Vegan
      • Cruelty-Free

      FOOTPRINT

      Brand Is:

      • 1% For The Planet
      • Certified B Corp
      • Certified Climate Neutral
      • Certified Plastic Neutral
      • Certified FCS
      • How2Recycle

      USAGE

      See Usage

      Why is The Hair Health Set fragrance-free?

      The Hair Health Set is offered in a Fragrance-Free option. Essential Oils, Natural - and Synthetic Fragrances can cause irritation for a dry, sensitive scalp. The Shampoo, The Conditioner and The Scalp Serum have been awarded the Seal Of Acceptance By The National Eczema Association and are Dermatologist-Tested, Hypoallergenic and Non-Comedogenic.

      Answer

      How does The Scalp Serum work?

      The Scalp Serum is formulated with 5% Capixyl™, a clinically-proven active ingredient which has been shown to support hair growth and visibly minimize thinning. 1% Hyaluronic Acid - 7 Molecular Weights - provides instant relief for a dry, sensitive scalp. Formula can be used in damp or dry hair. Oil-Free. Non-Sticky. Non-Greasy. No Residue. No Alcohol. No Silicones. No Synthetic Fragrance. Formula can be used on color-treated hair.

      Answer

      What is Capixyl™?

      Capixyl™ is an anti-thinning agent for hair. It is a synergistic combination of biomimetic peptide and red clover flower extract rich in Biochanin A. This hair treatment helps support and improve the hair growth cycle. Capixyl™ helps provide fuller, thicker, healthier hair. Capixyl™ should be used every day for best results. It is preservative free.

      Answer

      Can I use these products while pregnant?

      We formulate without ingredients on the EU's prohibited substances list (Regulation No.1223/2009, Annex II). All Nécessaire products are Dermatologist-Tested, Hypoallergenic. If you have any specific concerns, we recommend consulting your doctor.

      Answer

      Are these products gluten-free, soy-free and nut-free?

      These products are gluten-free, soy-free and nut-free as confirmed by our ingredient suppliers. They are manufactured in a facility where gluten, soy and nuts may be used. If you have an allergy to gluten, soy or nuts, we recommend that you do not use these product. If you still wish to try, please consider a patch test.

      Answer

      4.4
      Rated 4.4 out of 5 stars
      Based on 702 reviews
      Total 5 star reviews: 517 Total 4 star reviews: 61 Total 3 star reviews: 48 Total 2 star reviews: 35 Total 1 star reviews: 41
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      702 reviews
      • Miriah C. X.
        Verified Buyer
        Reviewing
        The Scalp Duo | Hyaluronic Acid
        I recommend this product
        What are your skin concerns? Dryness, Eczema/Psoriasis
        What are your hair concerns? Dryness, Thinning
        Rated 5 out of 5 stars
        12/31/25
        Scalp savior

        Historically I have needed 5% urea to have a scalp that had any sense of normalcy. I have eczema and severely dry skin. I’ve tired so many products marketed for eczema and scalp psoriasis, dandruff etc. it’s tricky because dandruff and dry scalp are different. After the urea supply chain blockages, I couldn’t get my usual shampoo. Queue the desperate search attempt for a shampoo that would help my chronically dry, tight, flaky scalp. I tried serums, oils, leave in treatments, deep conditioners you name it. This has been the only thing to really help me. I haven’t even been using it for 12 weeks which is the recommended time to see the full results. After one use, my scalp felt a difference. After about a week, things were really looking up. I’ve already recommended to my sister who is in Utah with the dry air. It’s pricy, but it’s worth feeling like my scalp is made of SKIN. No more embarrassing flakes on my black clothes. No more of the hair growth topicals not being able to actually get to my hair because my scalp was covered in dead skin. I don’t even understand how skin can die off and then regenerate so quickly? I use with a shampoo silicone brush. Leave both in for at least a couple minutes. The conditioner makes my hair softer than it has been since I was a teenager?! My hope is that this will also help long term with the thinning I was experiencing because my poor scalp was a barren wasteland. I urge you to try if you have a dry tight scalp that you can feel…

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      • Suzanne L.
        Verified Buyer
        Reviewing
        The Scalp Duo | Hyaluronic Acid
        I recommend this product
        What are your skin concerns? Aging, Uneven Skin/Spots, Dryness
        What are your hair concerns? Dryness, Thinning, Frizz
        Rated 5 out of 5 stars
        12/28/25
        High Hopes

        I just started using this duo. I color my hair and have for a very long time. Dryness and frizziness, but still maintaining body, has been a long time challenge. Frizziness on the ends is still apparent but I have high hopes that with continued use that will go away. My hair is definitely silkier and breakage is much much less!

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      • sydney r.
        Verified Buyer
        Reviewing
        The Scalp Duo | Hyaluronic Acid
        I recommend this product
        What are your skin concerns? Eczema/Psoriasis
        What are your hair concerns? Dryness
        Rated 5 out of 5 stars
        12/27/25
        I love these products.

        I enjoy them being fragrance free, they leave my scalp and strands feeling clean but not stripped of moisture. I would like them in a larger size.

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      • Daniel H.
        Verified Buyer
        Reviewing
        The Scalp Essentials | Hyaluronic Acid | 5% Capixyl™
        I recommend this product
        What are your hair concerns? Thinning
        Rated 5 out of 5 stars
        12/23/25
        Feeling clean

        So clean I felt I needed the conditioner and was silky smooth.

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      • Inna K.
        Verified Buyer
        Reviewing
        The Scalp Duo | Hyaluronic Acid
        I recommend this product
        Rated 5 out of 5 stars
        12/9/25
        Wonderful set

        This is a great product!

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