Nécessaire Rosemary Serum scalp treatment 1 fl oz — 70% rosemary & 5% Capixyl, quick‑dry non‑greasy

Nécessaire Rosemary Serum is a lightweight, quick-dry leave-in scalp serum made with 70% rosemary water, oil and extract plus 5% Capixyl™ to support the appearance of denser, fuller, healthier-looking hair.

This clear, fast-absorbing 1 fl oz serum targets the scalp with a concentrated blend of rosemary actives, plant proteins and essential ceramides to create a balanced foundation for hair that looks thicker and feels healthier. The formula is free from silicones, parabens, phthalates and PEGs, is dermatologist-tested, vegan and cruelty-free, and leaves no residue or heavy fragrance—only a pure rosemary scent.

How does this serum work into my daily routine?

Use the serum directly on dry or towel-dried scalp as a leave-in treatment. Apply to targeted areas or across the whole scalp, massage gently to distribute, and style as usual; the quick-dry texture absorbs without weighing hair down.

• Daily application recommended for visible improvements in overall hair appearance
• Works well under styling products—no oily finish or residue
• Suitable for both men and women and all hair textures

What key ingredients are included and why do they matter?

The formula combines 70% rosemary water, oil and extract with 5% Capixyl™, plus plant proteins and essential ceramides. These components support scalp health and help hair look fuller by improving the scalp environment and strengthening the hair fiber surface.

• 70% rosemary water/oil/extract: concentrated botanical base with a clean rosemary aroma
• 5% Capixyl™: peptide complex chosen for cosmetic support of thicker-looking hair
• Plant proteins & ceramides: reinforce hair cuticle integrity and scalp barrier support

Will this leave my hair greasy or interfere with color-treated hair?

No — the serum is formulated to be clear, quick-dry and non-greasy, so it won’t leave visible residue or weigh hair down. It is also color-safe and created to integrate with typical styling and color routines without causing buildup.

• Clear, fast-absorbing texture: no oily or sticky finish
• Non-comedogenic and hypoallergenic: designed for comfortable scalp wear
• Dermatologist-tested and color-safe: compatible with most salon treatments

Are there any harsh additives or synthetic fragrances?

The serum is formulated without silicones, phthalates, parabens or PEGs, and no fine fragrance has been added. Instead of a synthetic perfume blend, it carries a pure rosemary scent derived from the formula’s botanical components.

• Free of common harsh additives and formulated to be gentle on scalp skin
• Pure rosemary aroma: no added fine fragrance or masking perfumes
• Vegan and cruelty-free: aligned with clean-beauty preferences

Who is this for: Nécessaire Rosemary Serum is designed for anyone seeking a lightweight, leave-in scalp treatment to support the appearance of denser, fuller hair. It suits men and women, people with thinning-prone hair or anyone looking to strengthen and refresh the scalp without heavy oils or fragrances. Ideal for daily use by those who want a clean-ingredient, dermatologist-tested option that layers easily with styling products and color treatments.

Ingredients

"Rosmarinus Officinalis (Rosemary) Leaf Water, Propanediol, Butylene Glycol, Aqua/Water/Eau, Rosmarinus Officinalis (Rosemary) Leaf Oil, Rosmarinus Officinalis (Rosemary) Leaf Extract, Hydrolyzed Jojoba Protein, Hydrolyzed Rice Protein, Hydrolyzed Pea Protein, Hydrolyzed Quinoa, Hydrolyzed Vegetable Protein, Ceramide AG, Ceramide AP, Ceramide EOP, Ceramide NG, Ceramide NP, Acetyl Tetrapeptide-3, Niacinamide, Panthenol, Trifolium Pratense (Clover) Flower Extract, Glycerin, Dipropylene Glycol, Sucrose Distearate, Glyceryl Stearate, Cholesterol, Hydrogenated Lecithin, 1,2-Hexanediol, Citric Acid, Caprylhydroxamic Acid, Dextran, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol, Limonene, Linalool, Pinene, Camphor, Terpineol, Beta-Caryophyllene Note: Ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging."