Nécessaire Scalp Serum daily treatment — 1 fl oz, 5% Capixyl + 1% Hyaluronic Acid, fragrance-free for fuller, healthier hair

Nécessaire The Scalp Serum is a daily, water-light treatment formulated with 5% Capixyl and 1% hyaluronic acid to support the appearance of fuller, thicker, healthier hair while soothing the scalp.

Designed as scalp-first skincare rather than a traditional cosmetic, this serum blends clinically chosen actives and nourishing vitamins to care for the scalp environment. The formula is lightweight, alcohol-free, and fragrance-free, and it carries the National Eczema Association’s Seal of Acceptance. Packaged in a recyclable glass bottle with a precision pipette, the product aims to be used consistently each day for visible improvement in hair density and scalp comfort.

How does this serum support fuller-looking hair?

The serum uses 5% Capixyl, a peptide-rich complex that targets the scalp to help improve the conditions that support hair follicle health. By improving the scalp environment and reinforcing the barrier, hair can look denser and feel stronger over time when the product is used consistently. Results depend on regular, daily application and proper scalp massage to maximize coverage and absorption.

• 5% Capixyl peptide complex to support hair density appearance
• Vitamins B3 and B5 to strengthen scalp barrier and resilience
• Apply daily to damp or dry hair for even distribution

Will it soothe dryness or irritation on the scalp?

The formula contains 1% hyaluronic acid to hydrate and help retain moisture at the scalp surface without leaving grease. ApiScalp and vitamin actives help calm the scalp and maintain a balanced barrier. Because it’s fragrance-free, hypoallergenic, and dermatologist-tested, many users with sensitive skin find it gentle enough for daily use.

• 1% hyaluronic acid for lightweight hydration
• ApiScalp and niacinamide to support barrier function
• Fragrance-free and National Eczema Association accepted

How should I use The Scalp Serum in my routine?

Use the serum daily on either damp or dry hair. Squeeze the bulb once to fill the pipette halfway, apply to targeted areas or across the entire scalp, then massage gently with fingertips—do not rinse out. Continue with your usual styling; consistent daily use yields the best outcomes.

• One bulb squeeze fills pipette half-full — simple dosage
• Massage into scalp; no rinsing required
• 30 ml bottle designed to provide roughly a 30-day supply

Is this product suitable for sensitive or eczema-prone skin?

The Scalp Serum is formulated to minimize irritation: it’s fragrance-free, hypoallergenic, non-comedogenic, and dermatologist-tested. It has been awarded the National Eczema Association Seal of Acceptance, indicating it meets the association’s criteria for those with sensitive or eczema-prone skin. Still, patch testing before full use is recommended for individuals with severe sensitivities.

• Dermatologist-tested and hypoallergenic formulation
• National Eczema Association Seal of Acceptance
• Patch test recommended for extreme sensitivity

Who is this for: The Scalp Serum suits anyone looking to treat the scalp like skin—people aiming to improve hair density appearance, relieve dryness, or build a healthier scalp baseline. It’s especially appropriate for those who prefer fragrance-free, vegan, and cruelty-free formulas, and for customers who prioritize sustainable packaging and certified climate-conscious brands. If you want a lightweight, daily treatment to support stronger-looking hair and a calmer scalp, this serum is formulated to fit into a simple, consistent routine.

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.