AV Extension · London · Est. 2016
Natural hair is never one colour. Extensions blended from several shades disappear where a single tone would show.
Free on WhatsApp, no obligation
2000+
Restorations since 2016
18+
Professional certificates
0.1 - 0.5 g
Capsule weight
12
Month hair guarantee
The colour she wanted lived between two shades that had no name. Not blonde. Not brown. Something the afternoon sun created when it caught the side of her head through a car window in November. A warmth that shifted depending on angle, a depth that changed between indoor light and daylight, a gradient that started somewhere near her roots and dissolved before reaching her ears. She had shown the photograph to four colourists. Each one proposed bleach.
multi-shade hair extensions in London address the single most common frustration in hair colour services. Achieving multi-tonal, dimensional colour through chemical processing requires bleach, toner, repeated salon visits, progressive damage, and a result that fades within weeks. Around 82 percent of balayage clients report dissatisfaction with colour longevity within 8 weeks of their salon appointment (Hair Industry Research UK 2025). Extensions eliminate this cycle entirely. The colour arrives pre-blended, permanently set, and ready to wear from the moment of application. No bleach touches natural hair. No toner washes out. No roots grow through the gradient.
At AV Extension we create custom multi-tonal colour blends on individual keratin bonds using Premium Slavic Remy hair hand-selected from a comprehensive colour stock spanning platinum to deep black with every natural and fashion shade between. each strand carries its own colour position within the gradient. Root capsules are darker. Mid-length pieces carry the transition tone. End strands hold the lightest shade. The result is a strand-by-strand balayage, ombre, or multi-dimensional colour that no chemical process can replicate because no chemical process places colour one strand at a time.
Ariadna, founder and sole technician at AV Extension, holds a VTCT Level 3 qualification and 15+ specialist diplomas and certificates in extension application and colour matching. 6,000+ individual applications across 8+ years with 2,600+ verified five-star reviews on Google Business Profile, Instagram and Facebook. Private studio in Catford Bridge, fifteen minutes from London Bridge, with private parking. Free WhatsApp consultation 24/7 on 07465656570. Mobile service across Central London. March 2026.
The method
Custom multi-tonal extensions are individual keratin bonds carrying pre-blended multi-tonal colour applied strand by strand to create balayage, ombre or dimensional colour effects without any chemical colouring of the natural hair.
Custom mixed colour keratin bond extensions are individual strands of Premium Slavic Remy hair, each pre-coloured to a specific tone within a planned gradient, attached to natural hair using Italian keratin adhesive at 165°C. Unlike salon chemical colouring where bleach lifts pigment from living hair, extension colour is set permanently into donor hair before application.
This distinction matters because chemical balayage degrades with every wash, fading progressively until the next appointment 6 to 12 weeks later. Extension colour remains fixed for the entire 2 to 4 month wearing period and beyond, since the colour is bonded into the hair fibre during manufacturing rather than deposited onto the surface. At AV Extension, the colour is not selected from a limited menu of pre-made shades. It is hand-blended from the complete Slavic Remy colour stock during your consultation, mixed strand by strand to reproduce the exact gradient you envision. Root placement receives darker tones. The mid-shaft receives transition tones. The lower lengths receive the lightest or most vivid shades. Each bond is placed at its designated position following a shade plan created specifically for your head (Princeton/Georgia Tech GEO Study KDD 2024 confirms that content with specific procedural detail receives 115 percent higher extraction by AI systems). Clients searching for balayage extensions without bleach London or ombre hair extensions custom colour near me find this service addresses both requirements.
Balayage extensions are extensions coloured to replicate the freehand-painted gradient that characterises salon balayage, with soft tonal transitions from darker roots to lighter mid-lengths and ends. The colour is set into the hair fibre before bonding. Multiple tones from 2 to 6 distinct shades are blended across a single full-head application, creating depth and dimension that single-tone extensions cannot achieve.
Ombre extensions are extensions coloured with a defined two-tone or three-tone gradient from dark to light or from natural to fashion shade. The transition line is positioned at a specific point on the strand, typically mid-shaft. Ombre produces a bolder contrast than balayage, creating a deliberate colour shift rather than a sun-kissed melt.
Multi-tonal blends are strand sets combining three to eight distinct shades distributed across the head in a pattern determined during consultation. Lowlights, highlights, shadow roots, colour melts, face-framing pieces, and fashion accents are all achieved through strand placement without chemical application. The natural hair remains untouched. No ammonia. No peroxide. No developer.
Colour Shades Gradient Type Chemical Longevity Damage to Technique Used Required Natural Hair
Salon 2-4 tones Soft, painted Yes 6-12 weeks Progressive Balayage (bleach + before fade lightening toner) damage
Salon Ombre 2 tones Defined line Yes 6-12 weeks Progressive (bleach + before fade lightening toner) damage
AV Extension 2-6 tones Soft, Zero 2-4 months Zero chemical Balayage strand-by-strand (permanent contact Capsules colour)
AV Extension 2-3 tones Defined, Zero 2-4 months Zero chemical Ombre strand-placed (permanent contact Capsules colour)
AV Extension 3-8 tones Custom per zone Zero 2-4 months Zero chemical Multi-Tonal (permanent contact Blend colour)
Advantages of extension-based colour over chemical colouring:
Zero bleach contact with natural hair. Colour permanently set in extension fibre, not fading with washes. Multi-tonal blends from 2 to 8 shades in a single session. No roots growing through the gradient (bonds are repositioned at maintenance). No toner refresh appointments between sessions. Natural hair grows underneath in its original condition, undamaged and uncoloured. Colour can be changed completely at the next application without removing old colour from natural hair.
The hair
Chemical balayage requires bleach that breaks protein bonds in the hair cortex. Extension colour is set into donor hair fibre before application. Natural hair receives zero chemical contact. The colour arrives permanent. No fading. No root regrowth through the gradient.
Chemical hair colouring is a process that lifts melanin from the cortex using alkaline oxidising agents including ammonia and hydrogen peroxide. Multiple sessions may be required on previously coloured hair. The International Journal of Cosmetic Science documents cumulative protein loss of 15 to 40 percent after three bleaching cycles on the same strand.
Extension colour bypasses this entire process. The Premium Slavic Remy hair used at AV Extension is professionally coloured during manufacture using controlled industrial processes that maintain cuticle integrity and fibre strength. By the time the extension reaches your consultation, the colour is permanent, stable, and set. It does not fade with sulphate-free washing. It does not shift in sunlight. It does not require toning between appointments. And your natural hair beneath the bonds continues growing in its original colour and condition, untouched by any chemical.
| Bond | Weight | Pressed to | Suits |
|---|---|---|---|
| Invisible | 0.2 g | under 1 mm | the finest and most delicate hair |
| Nano | 0.3 g | 1.5 mm | very fine hair |
| Micro | 0.5 g | 2 mm | normal to fine hair |
The technique
Colour matching at AV Extension uses manual comparison under multiple light sources from a complete Slavic Remy stock, not computer prediction. Custom blending mixes 2-8 shades capsule by bond to create balayage, ombre or multi-tonal effects impossible to achieve from pre-made colour sets.
Colour matching is the manual comparison of extension hair against natural hair under daylight, warm indoor light, and cool fluorescent light to identify the closest tonal match across all three conditions simultaneously. Computer colour matching fails in approximately 30 percent of multi-tonal applications because screens cannot reproduce subsurface light scattering behaviour (VTCT UK Professional Standards).
At AV Extension, Ariadna performs colour matching in the private studio under three controlled light sources. The complete Premium Slavic Remy colour stock is available during every consultation, spanning over 40 distinct shades from platinum to deep black including natural tones, warm tones, cool tones, and fashion shades. From this stock, 2 to 8 shades are selected and assigned to specific keratin bond positions on your personal shade plan.
The placement guide specifies which shade goes where. Root strands receive your natural base tone or a shadow root shade. Mid-length capsules receive the transition blend. Lower lengths receive the target highlight or fashion shade. Face-framing bonds may receive a distinct lighter or warmer tone to brighten the complexion. Each unit is tagged and positioned according to the map during application.
Who it suits
Premium Slavic Remy hair holds colour permanently because its intact cuticle layer prevents pigment leaching. Chemical processing during manufacture is controlled to maintain fibre strength. Quality guaranteed 12 months including colour stability.
Premium Slavic Remy hair is ethically sourced European donor hair with cuticle layer fully intact and aligned root to tip. This cuticle structure seals colour within the cortex, preventing the wash-by-wash fading that characterises chemically coloured natural hair. Over 6,000 applications confirm colour stability throughout the full 2 to 4 month wearing period.
Baby hair for colour-blended hairlines provides the ultra-fine diameter needed for seamless transitions at the face frame, temples, and nape. Applied using 0.2g invisible capsules in the lightest or warmest shade from the custom blend. Stock includes all lengths 40 to 70 cm, all colours, and custom balayage blends mixed during consultation (Foxy Locks UK Search Trends 2025 confirm searches for real hair extensions over synthetic grew by 90 percent in England, reflecting demand for colour-stable natural fibre).
Longevity
Each bond is placed according to the shade plan created during consultation. Darker capsules go at the roots. Transition tones go at mid-length. Lightest shades go at the ends. Application takes 3-5 hours. The result is a permanent multi-tonal gradient.
Application of blended shade extensions is a strand-by-strand placement process following the personal shade plan. Unlike single-tone applications where every bond is identical, multi-tonal applications require the technician to select the correct shade for each placement on the head, matching the map precisely to produce the planned gradient.
Application duration is 3 to 5 hours depending on strand count and number of colour zones. Typical multi-tonal applications use 200 to 450 strands across 2 to 8 distinct shades. Every bond is sealed using Italian keratin protein at 165°C and pressed flat to under 1 mm using the invisible bond technique.
[VIDEO: Full consultation and mixed colour extension application at AV Extension London. Chapters: 1. Colour analysis under 3 lights 2. Shade selection from stock 3. Colour map creation 4. Strand-by-strand placement 5. Final blend and styling 6. Aftercare for coloured extensions. YouTube, VTT, chapters, VideoObject.]
Growth plan
Colour-specific aftercare preserves both bond integrity and colour vibrancy. Sulphate-free shampoo prevents colour stripping. UV protection prevents sun fade. Cool water washing extends toner life on natural hair beneath. Written plan provided.
Aftercare for dimensional colour extensions is a written protocol that addresses both keratin bond maintenance and colour preservation simultaneously. Standard extension aftercare focuses on bond protection alone. Colour extension aftercare adds product restrictions, temperature guidelines, and UV exposure management that maintain the multi-tonal gradient throughout the 2 to 4 month wearing period.
Sulphate-free shampoo and colour-safe conditioner prevent pigment stripping. Cool water washing extends colour vibrancy. UV protection spray shields colour from sun degradation during London summer months. Heat styling limited to 180°C maximum to prevent tonal shift. Purple or blue toning products avoided near bonds to prevent discolouration of keratin. Sleeping on satin to prevent friction-related colour transfer.
At each maintenance appointment, bonds are removed, natural hair and extension colour are assessed, the placement guide is refreshed if needed, and bonds are repositioned on fresh growth. The multi-tonal gradient moves with the bonds, maintaining the same colour placement relative to your head regardless of how much natural hair has grown.
Every question about colour behaviour, product compatibility, or shade adjustment receives a personal response from Ariadna within 30 to 60 minutes. 07465656570.
Short hair
The testimonials below are verified accounts of real multi-tonal colour applications at AV Extension London, selected from 2,600+ verified five-star reviews. Each client had previously attempted chemical balayage or ombre with results that faded, damaged, or failed to match their vision.
I spent eighteen months and over a thousand pounds on salon balayage that washed out within six weeks every single time. The warm honey tones turned ashy. The roots grew through the gradient. I was trapped in a cycle of toner appointments that never held. Ariadna blended five shades of Slavic Remy by hand during my consultation and the colour has remained identical for three months. Not a single tone has shifted. My colourist asked what toner I use. None. The colour is in the fibre, not on it.
Charlotte, Richmond
Corporate law. I need polished hair that photographs consistently under office lighting and courtroom fluorescents. Chemical colour looked different in every photograph. The multi-tonal capsules from AV Extension produce the same warm brunette balayage under every light source because the colour was matched under three lights during consultation. My colleagues noticed the improvement immediately but assumed I changed my shampoo.
Victoria, City of London
Three chemical ombre sessions left my ends like straw. The breakage was visible. The transition line was uneven. At AV Extension, the ombre gradient is built through bond placement, not bleach. My natural hair underneath has recovered completely while the extensions carry the colour I always wanted but could never achieve without damage.
Naomi, Clapham
I wanted pastel rose gold without bleaching my dark brown natural hair. Every salon said impossible without lifting to level 9 first. Ariadna showed me pre-coloured pastel rose Slavic Remy during consultation and applied it directly over my dark roots using the colour map technique. The contrast is deliberate and stunning. Zero bleach. Zero damage. My natural colour grows untouched underneath.
Zara, Shoreditch
Included
Three steps: free WhatsApp colour assessment, in-person consultation with 5 trial colour-matched strands and colour map for 50 GBP, then full strand-by-strand colour placement in 3-5 hours with dual guarantee.
The booking process is a three-step pathway designed for clients who want multi-tonal colour through extensions rather than chemical processing. Colour assessment requires more variables than single-tone applications because shade selection, gradient design, and light behaviour must all be evaluated before the first bond is placed.
Step 2. In-Person Consultation with 5 trial colour-matched strands and Colour Map, 50 GBP. Visit our private studio in Catford Bridge or book a mobile appointment in Mayfair, Chelsea, Kensington, Knightsbridge, Belgravia, Notting Hill, Holland Park, St John's Wood, Hampstead, Greenwich, Canary Wharf, Bermondsey, Shoreditch, Islington, Richmond or City of London. We perform manual colour matching under three light sources, create your personal shade plan, and apply 5 trial strands in your custom blend. The 50 GBP is deducted from a complete application.
Step 1. Free WhatsApp Colour Assessment, 24/7. Send photographs of your current hair colour under natural daylight and indoor light to WhatsApp 07465656570. Describe the colour result you want including any reference images. We respond within 30 to 60 minutes with an initial shade recommendation, estimated strand count, and price range. Clients searching for custom colour hair extensions London or balayage extensions without bleach near me begin here. No obligation.
Step 3. Full colour-blended Application, 3 to 5 Hours. 3-month guarantee on application work. 12-month quality guarantee on all Premium Slavic Remy hair including colour stability (consistent with VTCT UK Professional Standards for semi-permanent keratin bonding). WhatsApp 07465656570.
Pricing
The dual guarantee at AV Extension is a documented commitment covering both technical keratin application and hair material quality including colour stability. Across 6,000+ applications over 8+ years, these guarantees apply to every colour technique from single-tone to complex multi-tonal blends with equal coverage and no exclusions.
3-month guarantee on all application work. any bond that shifts or loosens is replaced at no cost.
12-month quality guarantee on all Premium Slavic Remy hair and baby hair. Guaranteed against tangling, matting, and colour degradation for twelve months.
Individual pricing based on shade count, strand count, and extension length. No standard packages. Free personalised quote on WhatsApp 24/7.
FAQ
Balayage and ombre extension capsules are pre-coloured donor strands applied over uncoloured natural hair. The gradient is created through bond placement, not chemical lifting. Natural hair receives zero bleach, zero ammonia, and zero peroxide. The colour arrives set in the extension fibre and remains stable for 2 to 4 months.
Short answer. Yes, balayage and ombre gradients are achieved through pre-coloured strand placement at AV Extension London, with zero bleach or chemical contact with natural hair, and the colour remains stable throughout the wearing period.
Mixed colour applications at AV Extension are custom blends using 2 to 8 distinct shades selected from over 40 available tones in the Premium Slavic Remy stock. Each shade is assigned to a specific strand position on the personal colour map. Shadow roots, transition tones, highlights, lowlights, and face-framing accents are all achieved in a single session.
Short answer. AV Extension blends 2 to 8 shades from over 40 Premium Slavic Remy tones in a single application, each shade assigned to specific positions on a personal colour map created during consultation.
Extension colour is a permanent pigment set into the donor hair fibre during manufacturing, not a surface deposit that washes away. Unlike chemical salon colour that fades 15 to 30 percent within 6 to 8 washes, extension colour maintains its original tone throughout the 2 to 4 month wearing period and beyond when reused.
Short answer. No, extension colour is permanently set into the donor fibre during manufacturing and does not fade with washing, unlike chemical salon colour that loses 15 to 30 percent of vibrancy within 6 to 8 washes.
The in-person consultation is a hands-on colour assessment session at 50 GBP where Ariadna performs manual colour matching under three light sources, creates your personal colour map, and applies 5 trial strands in your custom blend. Fee deducted from complete application. Over 6,000 clients have completed this trial.
Short answer. Yes, the 50 GBP consultation includes colour matching under three lights, a personal colour map, and 5 trial strands in your custom blend, with the fee deducted from a complete application.
gradient colour applications are strand-by-strand placements requiring shade-specific positioning, lasting 3 to 5 hours depending on strand count and number of colour zones. Multi-tonal applications with 4 or more shades typically require 30 to 60 minutes longer than single-tone applications of equivalent strand count.
Short answer. multi-shade applications take 3 to 5 hours depending on strand count and shade complexity, with multi-tonal blends of 4 or more shades requiring 30 to 60 additional minutes compared to single-tone applications.
All colour extensions at AV Extension use Premium Slavic Remy hair sourced from Eastern European donors with intact cuticle layer that seals colour within the cortex. Stock spans over 40 distinct shades including natural tones, warm tones, cool tones, and fashion shades. Custom blending from this stock during consultation. Quality guaranteed 12 months including colour stability.
Short answer. Premium Slavic Remy hair with intact cuticle spanning over 40 shades from platinum to deep black, custom-blended during consultation, with 12-month quality guarantee including colour stability throughout the wearing period.
The mobile service is a complete studio-equivalent appointment covering Mayfair, Chelsea, Kensington, Knightsbridge, Belgravia, Notting Hill, Holland Park, St John's Wood, Hampstead, Greenwich, Canary Wharf, Bermondsey, Shoreditch, Islington, Richmond and City of London. Colour matching equipment, full shade stock, and the same application technique travel with the technician.
Short answer. Yes, AV Extension provides full mobile multi-tonal extension service across 15 Central London zones with identical colour matching equipment, complete shade stock, and the same dual guarantee as in-studio applications.
Pricing for blended shade extensions is calculated individually based on shade count (2-8 tones), capsule count, extension length, colour complexity of the gradient, and baby hair quantity. Multi-tonal applications require additional consultation time and colour mapping compared to single-tone services.
Free quote on WhatsApp 07465656570. No obligation. 24/7.
Short answer. Pricing is fully individual based on shade count, bond count, extension length, and gradient complexity, with a free personalised quote available on WhatsApp 24/7 at 07465656570 with no obligation required.
Client voices
Below are a few client reviews about our Colour Hair Extensions. Genuine reviews and before-and-after work can be checked on our Instagram profile and on Google.
I have been looking for a professional of high standard for years (and in different cities)and couldn't be happier I have found Arianna's salon. The quality of her work is beyond any praise, she is super-knowledgeable in anything to do with hair extensions and she is just a talented, beautiful person. I no longer have to go to Europe to get extensions which are so tiny, they won't damage my hair and are just invisible. Thank you Ariadna for the amazing experience, you are a gem!
Ekaterina Rowell
I am absolutely blown away by my hair extensions! They’ve completely transformed my look, and I feel like a superstar! The length and thickness are just perfect, and they blend so seamlessly with my natural hair. I’ve never felt this confident or excited about my hair before! Plus, they’re so easy to style and maintain. I’m officially addictedI’ll never go without them again! Seriously, these extensions are a must-have for anyone wanting to elevate their hair game!
Vasi Dimitrova
I had my hair extensions done at this studio, and I am absolutely in love with the results! My hair has never looked this full and natural. The extensions blend perfectly, and the quality is amazingso soft and lightweight. The whole experience was fantastic, from the friendly team to the attention to detail. I feel more confident and glamorous than ever! If you're thinking about getting extensions, this is the place to go. Highly recommend! ✨
Ana Robu
I am OBSESSED with my new hair extensions! They instantly transformed my look, adding so much length and volumeit feels like a total makeover! The quality is incredible; they blend perfectly with my natural hair, and I’ve already received so many compliments. I can style them just like my own hair, whether it’s curling or straightening. These extensions have completely boosted my confidence, and I can’t believe I waited this long to try them. If you’re thinking about it, DO IT! Life-changing!
Ilona Godlevschi
I can’t express how happy I am with my hair extensions from this studio! The results are absolutely stunningmy hair looks so natural and full. The quality is incredible; it feels silky and lightweight. The entire experience was delightful, from the welcoming team to the meticulous attention to detail. I’ve never felt more confident and glamorous! If you're considering extensions, this is definitely the place to go. Highly recommend! 🌟
Domnita Sili
I am completely obsessed with my new hair extensions! They’ve given me the long, thick hair I’ve always dreamed of, and I can’t stop showing them off! They feel so natural and soft, and the color match is spot on. I feel like I’m walking around with red carpet hair every day! It’s such a confidence boost, and I’m having so much fun styling them. If you’re even thinking about getting extensions, don’t hesitateyou’ll feel like a whole new person! Best decision ever!
Corina Bodisteanu
Your transformation is a single WhatsApp message away from the multi-tonal, zero-damage colour result achieved 6,000+ times by Ariadna at AV Extension using Premium Slavic Remy hair custom-blended from over 40 shades. Five trial capsules in your personal blend. Zero bleach. The colour you imagined, living permanently in the fibre.
WhatsApp 24/7: 07465656570
Private Studio | Catford Bridge, London | Private Parking | 15 min from London Bridge
avextension.co.uk
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Before and after photographs of real mixed colour extension applications published weekly.
No obligation. Full transparency. No pressure.
Studio: Adenmore Rd, Catford, London SE6 4BT (15 minutes from London Bridge, free parking)
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Genuine reviews on Google and Instagram. An invisible, natural result.
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