• Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
  • Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz Avelisse
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Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz

Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz

£71.72 GBP
£71.72 GBP
Save % Sold out

Curated for everyday beauty routines

Tracked delivery across the United Kingdom

Secure checkout

Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz

£71.72
£71.72
Save % Sold out
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Tracked UK delivery. Estimated arrival between - and -.

Product Overview

Nécessaire Rosemary Serum is a concentrated hair treatment designed to promote denser, fuller, and healthier-looking hair. Combining the power of rosemary (70% rosemary water, oil, and extract) with 5% Capixyl™, a clinically studied peptide complex, this serum targets hair thinning and supports a healthy scalp environment. Its lightweight, quick-dry formula leaves no residue, making it suitable for all hair types and lifestyles. Vegan and free from harsh chemicals, it's a clean beauty essential for anyone concerned about hair density.

Key Features & Benefits

  • 70% Rosemary Complex: Infused with rosemary water, oil, and extract to stimulate the scalp and improve circulation, promoting stronger hair follicles.
  • 5% Capixyl™: A patented peptide blend that helps reduce hair thinning and supports thicker, fuller hair over time.
  • Quick-Dry & No Residue: The lightweight formula absorbs rapidly, leaving hair feeling clean, not greasy or sticky.
  • Vegan & Clean: Made without sulfates, parabens, phthalates, or synthetic fragrances. Cruelty-free and suitable for all hair types.
  • Gender-Neutral: Designed for both women and men experiencing hair thinning or seeking to improve hair health.

How to Use

Apply 3-5 drops directly to the scalp in areas of concern. Gently massage with fingertips for 30 seconds. Use once daily, preferably on clean, damp hair. For best results, use consistently for at least 3 months. Can be used alone or layered with other hair care products. Avoid contact with eyes.

Who It Is For

Ideal for anyone noticing hair thinning, shedding, or lack of volume. Suitable for both women and men with all hair types (straight, wavy, curly, coily). Safe for color-treated and chemically processed hair. Perfect for those seeking a clean, vegan, and scientifically-backed solution to improve hair density and scalp health.

Why Choose Nécessaire Rosemary Serum?

Nécessaire is committed to clean, effective ingredients. This serum harnesses the proven benefits of rosemary—a traditional herb for hair growth—combined with Capixyl™, a modern peptide technology. Unlike heavy oils or sticky gels, our serum absorbs quickly without weighing hair down. It's a simple, daily addition to your routine that delivers visible results. Backed by dermatologist testing and formulated without toxins, it's a trustworthy choice for healthier hair.

Technical Details

Size: 1 fl oz (30 ml). Ingredients: Rosmarinus Officinalis (Rosemary) Leaf Water, Propanediol, Glycerin, Aqua/Water/Eau, Rosmarinus Officinalis (Rosemary) Leaf Oil, Rosmarinus Officinalis (Rosemary) Leaf Extract, Capixyl™ (Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower Extract), Leuconostoc/Radish Root Ferment Filtrate, Lactobacillus Ferment, Citric Acid, Sodium Benzoate, Potassium Sorbate. Free from sulfates, parabens, phthalates, synthetic fragrances, and animal-derived ingredients.

Delivery in the United Kingdom

Orders are prepared with clear UK delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

Avelise is set up around straightforward post-purchase support and a 30-day returns message. Please check the store returns policy before sending an item back, because final eligibility can depend on product condition, hygiene exclusions, packaging, proof of purchase and whether the return request is started within the stated return window.

How to choose

Use the product description, available variants, product images and collection filters to compare suitability, finish, shade, size, texture or routine step. For beauty products, always review the ingredient list, directions, warnings and usage information on the product packaging before applying, especially when choosing skincare, haircare or body care for a specific concern.

Ingredients and suitability

Ingredient lists, shade details, materials and suitability notes can change by batch or supplier. Check the product packaging first, compare any allergens or sensitivities before use, patch test where appropriate and stop use if irritation occurs. If you are unsure whether a product is right for you, seek professional advice before applying it.

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Why shop with Avelisse

Why Shop with Avelisse?

Secure Checkout

Checkout is handled securely through Shopify.

Clear Returns Policy

Returns information is written plainly before purchase.

Tracked Delivery Options

Delivery messaging is set up for United Kingdom shoppers.

Dedicated Customer Support

Support routes are available for order and product questions.

Carefully Selected Products

Products are organised for easier beauty discovery.

Product guide

Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz at Avelisse

Product OverviewNécessaire Rosemary Serum is a concentrated hair treatment designed to promote denser, fuller, and healthier-looking hair. Combining the power of rosemary (70% rosemary water, oil, and extract) with 5%...

Category Beauty
Delivery area United Kingdom
Checkout Secure checkout
capixyl serumhair density serumhair growth serumhair thinning treatmentnecessaire hairquick dry hair serumrosemary serumvegan hair serum

How to decide if this product fits your routine

Read the product description, compare available variants and check the packaging before use. For skincare, haircare and body care products, patch test when appropriate and stop use if irritation occurs.

What Avelisse makes clear before checkout

The page surfaces price, availability, variant choices, UK delivery expectations, returns guidance and secure checkout information so customers can make a quicker decision.

Questions about Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz

Is Nécessaire Rosemary Serum for Hair Growth – Denser, Fuller, Healthier Hair – 70% Rosemary Water, Oil, Extract + 5% Capixyl™ – Vegan, Quick-Dry, No Residue – 1 fl oz available for UK shoppers?

Yes. This product is currently shown as available on Avelisse for United Kingdom shoppers.

How should I compare this product with similar beauty items?

Compare the product type, ingredients or materials shown on packaging, variants, price, delivery expectations and the routine step it supports.

Where can I find delivery and returns information?

Delivery timing is shown near the add to basket area where available. Returns guidance is shown on the product page and final eligibility is covered in the store returns policy.

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