The Scalp Duo | Hyaluronic Acid

4.4
Rated 4.4 out of 5 stars
708 Reviews

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

Treat Your Scalp Like Your Skin™

The Scalp Duo is a 2-step balancing duo for the scalp. The Shampoo and The Conditioner are infused with Hyaluronic Acid, Vitamin B3, Vitamin B5 and ApiScalp™ to help balance hydrate, and soothe a dry, sensitive scalp. The Hyaluronic Acid complex used in The Shampoo and The Conditioner has seven (7) Molecular Weights for multi-level hydration. ApiScalp™ – a plant based, natural extract of Apium Graveolens Seeds - helps calm itchiness and irritation. Start with The Shampoo –  a gentle fragrance-free foaming gel. Follow with The Conditioner –  a gentle fragrance-free detangling cream. Dermatologist-Tested. Hypoallergenic. Non-comedogenic. Color-Safe. The Shampoo and The Conditioner hold The Seal of Approval by The National Eczema Association.

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

$64


Free US Shipping $75+ | Free Returns

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

Treat Your Scalp Like Your Skin™

The Scalp Duo is a 2-step balancing duo for the scalp. The Shampoo and The Conditioner are infused with Hyaluronic Acid, Vitamin B3, Vitamin B5 and ApiScalp™ to help balance hydrate, and soothe a dry, sensitive scalp. The Hyaluronic Acid complex used in The Shampoo and The Conditioner has seven (7) Molecular Weights for multi-level hydration. ApiScalp™ – a plant based, natural extract of Apium Graveolens Seeds - helps calm itchiness and irritation. Start with The Shampoo –  a gentle fragrance-free foaming gel. Follow with The Conditioner –  a gentle fragrance-free detangling cream. Dermatologist-Tested. Hypoallergenic. Non-comedogenic. Color-Safe. The Shampoo and The Conditioner hold The Seal of Approval by The National Eczema Association.

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

TARGETS

Scalp Health

TREATMENT

Hyaluronic Acid
Vitamin B3
Vitamin B5
ApiScalp™

TESTED

Product Is:

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

SCENT

Fragrance-Free

USAGE

See Usage

FOOTPRINT

Brand Is:

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

AWARDS

2022 Allure Best Of Beauty
2023 SELF
2021 OK!

See Awards

Can I use The Shampoo and The Conditioner daily?

Yes. Use The Shampoo and The Conditioner daily or on wash day. The Shampoo and The Conditioner are dermatologist-tested, hypoallergenic and non-comedogenic. No SLS/SLES. No Silicones. No Phthalates. No Parabens. No PEGs. Formulas hold The Seal of Approval by The National Eczema Association.

Answer


Can all hair types and hair textures use The Shampoo and The Conditioner?

Yes. The Shampoo and The Conditioner are safe for all hair types and textures. The Shampoo and The Conditioner are dermatologist-tested, hypoallergenic and non-comedogenic. No SLS/SLES. No Silicones. No Phthalates. No Parabens. No PEGs. Formulas hold The Seal of Approval by The National Eczema Association.

Answer


When should I use Fragrance-Free vs Rosemary Franchise?

Fragrance-Free Shampoo and Conditioner is a balancing cleanse and conditioning duo for a dry, sensitive scalp. Rosemary Shampoo and Conditioner is a strengthening cleanse and conditioning duo for weak, thinning hair. All formulas are dermatologist- tested, hypoallergenic and non-comedogenic. No SLS/SLES. No Silicones. No Phthalates. No Parabens. No PEGs.

Answer


Is The Shampoo and The Conditioner gluten-free, soy-free and nut-free?

The Shampoo and The Conditioner are not certified gluten-free, soy-free or nut-free. Nécessaire is 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 products. If you still wish to try, please consider a patch test.

Answer


Is The Shampoo and The Conditioner pregnancy-safe

At Nécessaire we formulate without ingredients on the EU's prohibited substances list (Regulation No.1223/2009, Annex II). All of our products are dermatologist-tested, hypoallergenic and non-comedogenic. If you have any specific questions or concerns, we recommend consulting your doctor.

Answer



4.4
Rated 4.4 out of 5 stars
Based on 708 reviews
Total 5 star reviews: 522 Total 4 star reviews: 61 Total 3 star reviews: 48 Total 2 star reviews: 35 Total 1 star reviews: 42
708 reviews
  • Pam R.
    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? Thinning
    Rated 5 out of 5 stars
    3/9/26
    Scalp Improvement

    This combination shampoo and conditioner has been a game changer for my dry, flaky scalp.

  • Sharyl K.
    Verified Buyer
    Reviewing
    The Scalp Duo | Hyaluronic Acid
    I recommend this product
    Rated 5 out of 5 stars
    2/28/26
    Great product line

    After a decade of trying to solve a really annoying scalp issue I learned about this company on a Dermatology YouTube channel and I figured I had nothing to loose because I had tried every medicated and non medicated hair product on the planet it seemed. I’m happy to say that so far both the unscented shampoo and conditioner and the Rosemary shampoo and conditioner do not aggravate my scalp and as long as I don’t insert any other shampoos in the rotation, my inflammation has completely disappeared! I now keep the shampoos and conditioners on subscription! I love them!!! I’ve been using them for 2 years.

  • Spencer
    Reviewing
    The Scalp Duo | Hyaluronic Acid
    I recommend this product
    Rated 5 out of 5 stars
    2/16/26
    5 Stars

    Super nice feeling in my hair

  • Elizabeth S.
    Verified Buyer
    Reviewing
    The Conditioner | Hyaluronic Acid | Travel
    I recommend this product
    What are your skin concerns? Dryness, Eczema/Psoriasis
    What are your hair concerns? Damage, Dryness
    Rated 5 out of 5 stars
    2/9/26
    Excellent option for travel

    I love the cap for a travel bottle. The conditioner easily works into my hair.

  • Elizabeth S.
    Verified Buyer
    Reviewing
    The Shampoo | Hyaluronic Acid | Travel
    I recommend this product
    What are your skin concerns? Dryness, Eczema/Psoriasis
    What are your hair concerns? Damage, Dryness
    Rated 5 out of 5 stars
    2/9/26
    Excellent travel option

    Shampoo is good and the valve on the cap makes it a great travel dispenser.