Nécessaire

The Scalp Serum

The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
The Scalp Serum
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Nécessaire

The Scalp Serum

The Scalp Serum

Daily scalp serum with 5% Capixyl™ and 1% Hyaluronic Acid for thicker, fuller, healthier hair. No residue. Quick-dry. All hair. Dermatologist-Tested.

Regular price $48
Sale price $48 Regular price
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The Scalp Serum

1 oz / 30 ml
$48
  • Overview
  • Choosing your shade
  • How to use
  • Ingredients
  • Sustainable Packaging
  • About the brand
Highlights

Suitable for

All hair types.

Why we stand behind it

Nécessaire The Scalp Serum is a daily quick-dry, water-light serum is infused with 5% Capixyl™ - clinically-proven to support thicker, fuller, healthier hair. 1% Hyaluronic Acid provides multi-level hydration for scalp dryness, while Vitamins B3/B5 and ApiScalp strengthen the scalp's protective barrier. The formula dries quickly and does not leave residue. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Fragrance-Free. The formula has been awarded the Seal Of Acceptance by the National Eczema Association.

30 ml equates to a 1-month supply.

Key ingredients

5% Capixyl™: Supports thicker, fuller, healthier-looking hair.
1% Hyaluronic Acid (7 Molecular Weights) : Provides multi-level hydration for a dry scalp.
Vitamin B3 | Vitamin B5 | ApiScalp: Help strengthen the scalp's protective barrier.

this product meets

The Credo Clean Standard™

Every product we offer meets our industry leading standards for safety and sustainability.

learn more

This product is

Cruelty Free

Vegan

What is an undertone?

An undertone is the color beneath the surface of your skin, which never changes (even with a tan). There are three types of undertones:

Pink/Cool

I see red or pink undertones around the perimeter of my face and neck.
My skin burns easily, but barely tans.
My skin looks better in silver jewelry than gold.

Neutral

I see both pink and yellow undertones around the perimeter of my face and neck.
My skin sometimes burns and sometimes tans.
My skin looks good in both gold and silver jewelry.

Yellow/Warm

I see yellow or golden undertones around the perimeter of my face and neck.
My skin rarely burns, but tans easily.
My skin looks better in gold jewelry than silver.

Find your shade match

Take our 1 minute quiz and get matched to real people with your skin tone and type.

Usage

Use once daily on dry or damp hair.
-Squeeze the bulb to fill pipette (pipette will be approximately half full)
-Apply to areas of concern
-Massage in with fingertips
-Do not rinse
-Style as usual
-Daily consistent use is required for results
-The Scalp Serum 30 ml is a 1-Month Supply

Full ingredient list
Aqua/Water/Eau, Butylene Glycol, Propanediol, Sodium Hyaluronate, Acetyl Tetrapeptide-3, Niacinamide, Panthenol, Trifolium Pratense (Clover) Flower Extract, Apium Graveolens (Celery) Seed Extract, Camellia Sinensis Leaf Extract, Biotinoyl Tripeptide-1, Nicotiana Benthamiana Hexapeptide-40 sh-Polypeptide-86, Nicotiana Benthamiana Hexapeptide-40 sh-Polypeptide-9,Nicotiana Benthamiana Octapeptide-30 sh-Oligopeptide-2, Sodium Tocopheryl Phosphate, Dextran, 1,2-Hexanediol, Caprylhydroxamic Acid, Citric Acid, Glycerin.
Help us end beauty packaging waste

We co-founded the nonprofit Pact to demystify how to recycle your beauty packaging empties and divert waste from landfills.

How to recycle your empties

1. Disassemble and clean all components

2. Pick the right disposal bin

3. Drop off your empties at your nearest Pact bin

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1 Product Recycled = 10 Credo Rewards Points

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Nécessaire

At Nécessaire we believe in less, but better. We design the personal care we need to support our health and wellness. All of our products are dermatologist-tested, hypoallergenic, non-comedogenic and vegan. We use our business to make a positive environmental impact everywhere we can. Nécessaire is a Certified B Corp, Certified Climate Neutral, Certified Plastic Neutral and a How2Recycle partner. Nécessaire donates 1% of all sales to environmental non-profits via 1% For The Planet.

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Overall rating: 4.394737 / 5 from 38 reviews.

AI Generated Review Summary

The Scalp Serum is a daily restorative treatment for thicker, fuller, healthier hair suitable for all hair types. Customers have mixed opinions on its effectiveness and feel, with some noticing a difference and others not seeing any change. Some users find it greasy while others feel it makes their hair softer and voluminous.

Summary topics

  • Effectiveness Difference: 18%
  • Hair Feel: 21%
  • Scalp Feel: 14%

Review topics: ["feels","consistency","packaging","use","hair","scalp","difference","serum","drops","greasiness"].

Review highlights

  • "I'm primarily using this for thinning hair around my hairline and my hair feels stronger and more voluminous at the root"Makenzie W.
  • "Feels nice, No residue"Jennifer J.
  • "Already noticing a difference after two weeks."Makenzie W.

Reviews

Works!!

"I love this for maintenance when I need some extra love and care."

Isabelle (5/5)

So much less hair loss

"I’m 44 and have always had thick hair, and some may say I still do, but I noticed it was falling out much more than it ever had prior. Hello perimenopause. Even baby hairs were falling out. Since starting this serum, that has stopped. I’ve only been using it for 2 months, and already bought two more back up bottles."

katie z. (5/5)

Feels nice, No residue

"My scalp feels refreshed and comfortable with this serum. It's not at all sticky or greasy. It has never made my hair feel dirty even after a few days. It feels like plain water, but gives just enough moisture that my scalp feels balanced."

Jennifer J. (5/5)

LOVE THIS STUFF!

"I have very thin, fine hair and I feel like I'm actually getting a bit thicker grow in now. I also have scalp psoriasis and this stuff really calms it down. Very easy to apply and dries well--not oily in the slightest!"

Kristan O. (5/5)

Isn't sticky, nice texture and helps!!

"I tried other brands from Sephora and they made my hair look sometimes greasy or just oily. This one I use and buy in packs of 3 because it goes on like water and works very well. I recommend it!"

Julee A. (5/5)

Too early to tell

"Just got this product that I expect takes at least a few weeks to notice effect. It is clear, colorless and thinly textured(not greasy) as described."

Suzanne M. (3/5)

Works

"I love this scalp serum for removing build up."

Isabelle (5/5)

Results TBD

"I've heard a lot of buzz about this which is why I purchased it. Results TBD, fingers crossed. . . at least it doesn't leave my hair looking greasy though!"

Jennifer M. (4/5)

so good

"amazing scalp serum"

Fiala (5/5)

So far so good

"I really like the way it feels and doesn’t leave my scalp oily but too soon to tell it’s true effectiveness."

Naomi S. (4/5)

Q&A