The Scalp Serum

The Scalp Serum

A daily restorative treatment for thicker, fuller, healthier hair.

Regular price $58
Sale price $58 Regular price
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  • Overview
  • Choosing your shade
  • How to use
  • Ingredients
  • Sustainable Packaging
  • About the brand

Suitable for

All hair types.

Why we stand behind it

Nécessaire The Scalp Serum is a daily restorative treatment for thicker, fuller, healthier hair. This water-light serum is infused with a 5% biomimetic peptide blend to support hair growth and visibly minimize thinning. 1% multi-molecular hyaluronic acid provides instant and deep hydration plus a 1% green tea extract provides itch-and flake-relief.

Formula is oil-free, non-sticky, non-greasy and leaves no residue. No alcohol. No silicones. No synthetic fragrance. Hypoallergenic. Dermatologist-Tested. Non-Comedogenic.

60-Day Supply.

this product meets

The Credo Clean Standard™

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

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This product is


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:


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.


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.


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.


Use The Scalp Serum daily in damp or dry hair. Squeeze the bulb once to fill the pipette 30% full (1 ml). Apply serum to areas of concern or all over. Massage in with fingertips. Do not rinse. Style as usual. Consistent daily use is required for results. The Scalp Serum (60 ml) equates to a 60-Day supply.

Full ingredient list

The Scalp Serum: Ingredients: 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

Earn rewards through recycling login

1 Product Recycled = 10 Credo Rewards Points

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Earn rewards through recycling

1 Product Recycled = 10 Credo Rewards Points


At Nécessaire we believe in less, but better. We deliver skincare for all of you. We infuse face - quality ingredients at effective concentrations to back our claims and deliver real results. Hypoallergenic. Dermatologist - Tested. Non - Comedogenic. We use our business to make a positive environmental impact everywhere we can. Certified B Corp. Certified Climate Neutral. Certified Plastic Neutral. Certified Vegan. 1% For The Planet Member.

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