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The Shampoo | Hyaluronic Acid

250 ml / 8.4 fl oz
4.4
Rated 4.4 out of 5 stars
708 Reviews

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

The Shampoo is a foundational fragrance-free shampoo for scalp health. The formula pairs a high concentration of gentle Plant Surfactants with Hyaluronic Acid, Vitamin B3 / B5, and ApiScalp™ to help provide a soft cleanse, while balancing and soothing a dry, sensitive scalp.  The Shampoo is fortified with Aloe Vera. Conditioner is required. Made without SLS/SLES, Silicones, Phthalates, Parabens and PEGs. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Vegan. Color-Safe. The Shampoo holds 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 Scalp Feels Hydrated
  • 96% Said My Scalp Feels Less Itchy
  • 94% Said My Scalp Feels Less Flaky

$32

250 ml / 8.4 fl oz
250 ml | $32 100 ml | $15

Free US Shipping $75+ | Free Returns

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

The Shampoo is a foundational fragrance-free shampoo for scalp health. The formula pairs a high concentration of gentle Plant Surfactants with Hyaluronic Acid, Vitamin B3 / B5, and ApiScalp™ to help provide a soft cleanse, while balancing and soothing a dry, sensitive scalp.  The Shampoo is fortified with Aloe Vera. Conditioner is required. Made without SLS/SLES, Silicones, Phthalates, Parabens and PEGs. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Vegan. Color-Safe. The Shampoo holds 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 Scalp Feels Hydrated
  • 96% Said My Scalp Feels Less Itchy
  • 94% Said My Scalp Feels Less Flaky

Free US Shipping $75+ | Free Returns

BUY IT WITH

TARGETS

Scalp Health

TREATMENT

Formula Contains:
Plant Surfactants
Hyaluronic Acid
Vitamin B3
Vitamin B5
ApiScalp™

See Ingredients

TESTED

Product Is:

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

TEXTURE

Gel

SCENT

Fragrance-Free

pH

5.5 - 6.5

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

Is The Fragrance-Free Shampoo And Conditioner Safe For All Hair Types And Hair Textures?

Yes. The Shampoo and The Conditioner are safe for all hair types and hair textures. The Shampoo uses gentle plant surfactants for cleansing, while The Conditioner uses gentle plant emollients for conditioning. The Shampoo and The Conditioner are formulated without SLS/SLES, Silicones, Phthalates, Parabens and PEGs. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Vegan. Color-Safe.

Answer

Why Is pH Level Mentioned On The Package?

During the formulation process we optimize the pH of the formula. We believe it directly impacts the safety and efficacy of the formula. The pH objective will vary based on product purpose. On the secondary packaging (carton) we provide a pH range. The reason a pH range is indicated is that pH may vary during the manufacturing process and/or slightly change over time. Formula that does not contain enough water, will not have a pH listed.

Answer

Is This Product Certified Eczema-Safe.

Yes. This product holds The Seal of Approval by the National Eczema Association.

Answer

Can I Use The Product If I Am Pregnant?

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 This Product Certified Gluten-Free, Soy-Free And Nut-Free?

This product is not certified gluten-free, soy-free or nut-free. This product 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 this product. If you still wish to try, please consider a patch test.

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
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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.

    Was this helpful?
  • 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.

    Was this helpful?
  • 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

    Was this helpful?
  • 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.

    Was this helpful?
  • 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.

    Was this helpful?