Fragrance-Free
Fragrance-Free
Fragrance-Free
Fragrance-Free

The Scalp Duo | Hyaluronic Acid

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

Treat Your Scalp Like Your Skin™. 

The Scalp Duo is a 2-step clinical system for scalp and hair health. The Shampoo and The Conditioner are infused with Hyaluronic Acid, Vitamin B3, Vitamin B5 and ApiScalp to balance a dry, sensitive scalp and support follicle health. No Sulfates. No Phthalates. No Parabens. No PEGs. No Silicones. Color-safe. Keratin-Safe. Fragrance-Free.  Both formulas hold The Seal of Approval by The National Eczema Association. 2 x Full-Size.

Clinical Perception Study | The Hair Essentials. 50+ participants used The Shampoo, The Conditioner and The Scalp Serum for 90 days. USA 2022. Topline below.

  • 90% Saw Thicker Hair
  • 94% Saw Fuller Hair
  • 96% Saw Healthier Hair

    $56

    Free US Shipping $50+ | 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 clinical system for scalp and hair health. The Shampoo and The Conditioner are infused with Hyaluronic Acid, Vitamin B3, Vitamin B5 and ApiScalp to balance a dry, sensitive scalp and support follicle health. No Sulfates. No Phthalates. No Parabens. No PEGs. No Silicones. Color-safe. Keratin-Safe. Fragrance-Free.  Both formulas hold The Seal of Approval by The National Eczema Association. 2 x Full-Size.

    Clinical Perception Study | The Hair Essentials. 50+ participants used The Shampoo, The Conditioner and The Scalp Serum for 90 days. USA 2022. Topline below.

    • 90% Saw Thicker Hair
    • 94% Saw Fuller Hair
    • 96% Saw Healthier Hair

      Free US Shipping $50+ | Free Returns

      Set Contains

      1

      Fragrance-Free
      See Ingredients

      2

      Fragrance-Free
      See Ingredients

      Full Ingredients

      Aqua/Water/Eau
      Sodium Lauroyl Methyl Isethionate
      Aloe Barbadensis Leaf Juice
      Cocamidopropyl Betaine
      Sodium Methyl Oleoyl Taurate
      Sodium Cocoyl Isethionate
      Propanediol
      Niacinamide
      Sodium Hyaluronate
      Panthenol
      Apium Graveolens (Celery) Seed Extract
      Persea Gratissima (Avocado) Oil
      Glycerin
      Disodium Cocoyl Glutamate
      Caprylic/Capric Triglyceride
      Citric Acid
      Caprylhydroxamic Acid
      Sodium Chloride
      1,2-Hexanediol
      Caprylyl Glycol
      Sodium Benzoate

      For the most complete and up-to-date list of ingredients, please refer to the product packaging.

      Full Ingredients

      Aqua/Water/Eau
      Cetearyl Alcohol
      Glycerin
      Cocos Nucifera (Coconut) Oil
      Aloe Barbadensis Leaf Juice
      Caprylic/Capric Triglyceride
      Behentrimonium Methosulfate
      Persea Gratissima (Avocado) Oil
      Niacinamide
      Panthenol
      Sodium Hyaluronate
      Apium Graveolens (Celery) Seed Extract
      Cetyl Hydroxyethylcellulose
      Citric Acid
      Caprylhydroxamic Acid
      1,2-Hexanediol
      Caprylyl Glycol
      Disodium Phosphate
      Hydrated Silica
      Propanediol
      Silica Dimethyl Silylate
      Sodium Phosphate

      BUY IT WITH

      TARGET

      Scalp Dryness
      Scalp Sensitivity

      INGREDIENTS

      Hyaluronic Acid
      Vitamin B3
      Vitamin B5
      ApiScalp

      TESTED

      • Hypoallergenic
      • Dermatologist-Tested
      • Non-Comedogenic

      FOOTPRINT

      • 1% For The Planet
      • Certified B Corp
      • Certified Climate Neutral
      • Certified Plastic Neutral
      • Certified Vegan
      • Cruelty-Free
      • FSC-Certified
      • How2Recycle

      USAGE

      See Usage

      AWARDS

      2022 Allure Best Of Beauty
      2023 SELF
      2021 OK!

      See Awards
      Why is The Hair Duo fragrance-free?
      The Shampoo and The Conditioner are offered in a Fragrance-Free option. Essential Oils, Natural - and Synthetic Fragrances can cause scalp irritation for some. The Shampoo and The Conditioner (Fragrance-Free) are awarded the Seal Of Acceptance By The National Eczema Association. The Shampoo and The Conditioner are Hypoallergenic, Dermatologist-Tested, and Non-Comedogenic.

      Answer

      How do I use The Hair Duo set?
      The Hair Duo is designed as your everyday scalp and hair care system. On wash day, use The Shampoo and The Conditioner as your cleanse and condition ritual. Massage The Shampoo onto wet scalp and hair. Rinse well. Follow with The Conditioner. Massage The Conditioner onto wet scalp and hair. Rinse well.

      Answer

      Is The Hair Duo set color-safe?
      The Shampoo and The Conditioner are formulated with ingredients that are safe for color-treated hair. The Shampoo and The Conditioner are formulated without Alcohol, Silicones, Sulfates, Phthalates, Parabens, PEGs, or Synthetic Fragrance. The Shampoo and The Conditioner are Hypoallergenic, Dermatologist-Tested and Non-Comedogenic. Please note Nécessaire has not run a formal panel test on color-treated hair.

      Answer

      Is The Hair Duo set 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 Hypoallergenic, Dermatologist-Tested, and Non-Comedogenic. If you have any specific questions or concerns, we recommend consulting your doctor.

      Answer

      Is The Hair Duo set 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