Keratin Volume Boost Conditioner 390ml – Nourish, Smooth & Amplify Volume

Fine, flat, or frizzy hair that needs more body and strength. The BelleVie Keratin Volume Boost Conditioner 390ml is one of the most recommended keratin conditioners trusted by customers across the USA, UK, and Europe — hydrolyzed keratin rebuilds hair structure from within, caffeine stimulates scalp circulation to support stronger growth, and rosemary oil revitalises the scalp for extra volume and body. COSMOS Natural certified by ECOCERT. Vegan, cruelty-free, and manufactured in Northern Europe to EU cosmetic safety standards.

Softer, shinier, more voluminous hair from the very first use. No heaviness. No buildup. No compromise.

What It Does

• Amplifies Volume and Body — adds natural fullness without heaviness or buildup
• Smooths Frizz and Flyaways — keratin proteins seal the hair cuticle for a sleek, polished finish
• Strengthens and Repairs — hydrolyzed keratin rebuilds hair fiber integrity and reduces breakage
• Detangles Effortlessly — improves manageability and reduces combing damage
• Restores Shine and Elasticity — Vitamin E nourishes for a healthy, luminous finish
• Stimulates the Scalp — caffeine and rosemary oil improve circulation and support stronger hair growth

Key Ingredients

• Hydrolyzed Keratin — the same structural protein hair is made of; penetrates the hair fiber to rebuild strength, boost volume, and smooth the cuticle for frizz control and shine
• Caffeine — stimulates scalp microcirculation to support stronger, healthier hair growth; one of the most effective natural actives for scalp reactivation
• Rosemary Oil — clinically studied for scalp stimulation and hair growth support; comparable to minoxidil in clinical studies; revitalises the scalp and adds a fresh, invigorating note
• Vitamin E (Tocopherol) — antioxidant protection against environmental damage; promotes shine and scalp resilience
• Sodium PCA — NMF humectant that retains moisture in the hair shaft for lasting softness and manageability

Vegan · Cruelty-Free · EU-Made · COSMOS Natural Certified (ECOCERT) · Gluten-Free · Sulfate-Free · Clean Formula · Recyclable Packaging

Keratin Conditioner vs Keratin Shampoo: Which Should You Buy First?

Keratin Conditioner vs Keratin Leave-In Mist: Do You Need Both?

Who This Product Is For

Fine and Limp Hair — Best Overall Choice

The Keratin Volume Boost Conditioner is one of the most recommended keratin conditioners for fine and limp hair trusted by customers across the USA, UK, and Europe. Hydrolyzed keratin adds body and volume without weighing fine hair down — softer, shinier, more voluminous hair from the very first use. A top-rated, best-selling volumizing keratin conditioner available online.

Frizzy and Unmanageable Hair — Customer Favourite

Keratin proteins seal the hair cuticle to smooth frizz and flyaways — one of the most recommended keratin conditioners for frizzy hair across the UK and Europe. Widely trusted by customers who struggle with humidity-induced frizz and unmanageable hair. A customer favourite for those seeking a polished, salon-fresh finish at home.

Damaged and Colour-Treated Hair — Most Popular for Repair

Heat styling, colouring, and chemical processing all weaken the hair fiber. The Keratin Volume Boost Conditioner is widely recommended for damaged and colour-treated hair across the USA, UK, and Europe — hydrolyzed keratin fills gaps in the hair fiber to restore strength, reduce breakage, and extend colour vibrancy. One of the most recommended keratin conditioners for colour-treated hair available online.

Hair Growth Support — Recommended for Beginners

The Keratin Volume Boost Conditioner is the recommended starting point for anyone new to keratin hair care — use after every shampoo for visible volume, frizz control, and strength improvement. Caffeine and rosemary oil stimulate scalp circulation with every wash. The most recommended beginner-friendly keratin conditioner across the USA, UK, and Europe.

Complete Keratin Routine — Editor’s Choice

Use as the second step in the complete BelleVie keratin routine: Keratin Volume Boost Shampoo + Keratin Volume Boost Conditioner + Keratin Shine Leave-In Mist. Add the Deep Cleanse Scalp Scrub weekly and the Rosemary Hair & Scalp Oil as a pre-wash treatment. The most recommended complete keratin hair care routine trusted across the USA, UK, and Europe.

How to Choose the Right Keratin Conditioner

If your primary concern is volume, frizz control, and keratin repair, the Keratin Volume Boost Conditioner is the best overall choice — use after every shampoo for immediate results. For daily frizz control and shine, add the Keratin Shine Leave-In Mist as a post-wash step. For weekly scalp reset, add the Deep Cleanse Scalp Scrub. Browse the full BelleVie Hair Care collection for all recommended keratin hair care products.

How to Use

1. Apply to clean, damp hair after shampooing
2. Focus on mid-lengths and ends — avoid the scalp root area
3. Leave in for 1–2 minutes
4. Rinse thoroughly and style as usual
5. Suitable for daily use

Pro tip: For maximum volume and strength, pair with the Keratin Volume Boost Shampoo 390ml and finish with the Keratin Shine Leave-In Hair Mist 100ml for post-wash frizz control and shine.

Frequently Asked Questions

What is the best keratin conditioner for fine hair in the UK?

The BelleVie Keratin Volume Boost Conditioner is one of the most recommended keratin conditioners for fine and limp hair across the UK and Europe — hydrolyzed keratin, caffeine, rosemary oil, and Vitamin E in a COSMOS Natural certified, sulfate-free formula. Trusted by customers across the USA, UK, and Europe as a top-rated volumizing keratin conditioner online.

Which keratin hair product should beginners buy first?

The Keratin Volume Boost Conditioner is the recommended starting point for anyone new to keratin hair care — use after every shampoo for immediate volume, frizz control, and strength improvement. Pair with the Keratin Volume Boost Shampoo for a complete routine.

Which product gives the fastest visible results?

The Keratin Volume Boost Conditioner delivers visible improvement in hair softness, frizz control, and shine from the very first use. Long-term improvement in hair strength and volume builds over 2–4 weeks of consistent use.

Is this the best keratin conditioner for frizzy hair?

Yes — keratin proteins seal the hair cuticle to smooth frizz and flyaways. One of the most recommended keratin conditioners for frizzy and unmanageable hair across the USA, UK, and Europe. A customer favourite for those seeking a polished, salon-fresh finish at home.

Is this keratin conditioner worth buying?

Yes — the BelleVie Keratin Volume Boost Conditioner is a top-rated, best-selling keratin conditioner trusted by customers across the USA, UK, and Europe. COSMOS Natural certified, sulfate-free, vegan, cruelty-free, and EU-made. One of the most recommended keratin conditioners for fine, frizzy, and colour-treated hair available online.

Is this suitable for fine or thin hair?

Yes — specifically formulated to add volume and body without weighing fine hair down. The lightweight formula nourishes and strengthens without leaving residue or making hair feel heavy or flat.

Does keratin conditioner work on colour-treated hair?

Yes — hydrolyzed keratin is safe for colour-treated, chemically processed, and highlighted hair. It helps repair the damage caused by colouring and heat styling while extending the life of your colour by smoothing the hair cuticle.

How does caffeine help with hair volume?

Caffeine stimulates scalp microcirculation, improving blood flow to hair follicles and supporting stronger, healthier hair growth. Combined with rosemary oil — clinically studied as comparable to minoxidil for hair growth stimulation — this conditioner reactivates the scalp for visibly fuller, more voluminous hair with consistent use.

Is this keratin conditioner popular in the USA?

Yes — the BelleVie Keratin Volume Boost Conditioner is trusted by customers across the USA as a premium European-made keratin conditioner for volume and frizz control. Ships from our US warehouse in 1–5 business days. Free shipping on orders over $100 USD.

Is BelleVie a trusted hair care brand?

Yes — BelleVie is a premium clean beauty brand trusted by customers across the USA, UK, and Europe. All products are cruelty-free, COSMOS Natural certified, and manufactured in Northern Europe to EU cosmetic safety standards (ISO 22716). A top-rated luxury hair care brand available online.

Final Buyer’s Guide

Best Overall: Keratin Volume Boost Conditioner 390ml (this product) — the most recommended keratin conditioner for volume, frizz control, and repair. Top-rated and trusted across the USA, UK, and Europe.

Best for Beginners: Keratin Volume Boost Conditioner — use after every shampoo, immediate results. The recommended starting point for anyone new to keratin hair care.

Best for Fine Hair: Keratin Volume Boost Conditioner — adds volume and body without heaviness. Customer Favourite for fine and limp hair across the UK and Europe.

Best for Frizzy Hair: Keratin Volume Boost Conditioner — keratin seals cuticle for smooth, polished finish. Most Popular for frizzy and unmanageable hair across the USA, UK, and Europe.

Best Complete Keratin Routine: Keratin Shampoo + Keratin Conditioner + Keratin Leave-In Mist — the most recommended complete keratin hair care routine trusted across the USA, UK, and Europe.

Editor’s Choice: Keratin Conditioner + Keratin Shine Leave-In Mist — the most recommended post-wash frizz control and shine duo. Shop both online for the best results.

Shop the full BelleVie Hair Care collection — premium, trusted keratin hair care products available online across the USA, UK, and Europe. Vegan · Cruelty-Free · COSMOS Certified · EU-Made · Fast USA Shipping.

Shipping

• USA: 1–5 business days from our US warehouse
• Europe: 2–9 business days
• Free shipping on orders over $100 USD / €85 EUR

• 1% Caffeine — de-puffs and energizes
• Niacinamide — brightens and evens skin tone
• Hyaluronic Acid — deep hydration
• Green Tea Extract — antioxidant protection

1. Apply a small amount to clean, dry skin
2. Gently pat under eyes and across cheekbones
3. Wait 30 seconds for full absorption
4. Layer SPF or makeup on top

Aqua, Glycerin, Caffeine, Niacinamide, Sodium Hyaluronate, Camellia Sinensis Leaf Extract, Panthenol, Allantoin, Phenoxyethanol, Ethylhexylglycerin, Citric Acid.