Hair Definitions

Business Details

Expert Hair Extensions & Keratin Treatments in London

Hair Definitions is a specialist hair salon in North London dedicated to enhancing natural hair while providing transformative solutions for clients seeking extensions, keratin treatments, and hair loss management. With expertise in Afro-Caribbean, European, and mixed-textured hair, we prioritise hair health through tailored consultations and premium services. Our team specialises in Brazilian Knots, KeraStraight treatments, and custom hair systems, ensuring safe, long-lasting results.

Recognised as Hair Salon of the Year for North London, we combine technical skill with ethical practices to deliver confidence-boosting outcomes. Clients from the UK and internationally trust us for our commitment to quality, using premium human hair and formaldehyde-free products. We offer free consultations, personalised aftercare advice, and a discreet environment to address individual needs, from volume enhancement to cosmetic hair loss solutions.

Services

Micro Rings Wigs/Weaves Brazilian Knots KeraStraight Afro Hair

Highlights and features

We offer free, detailed consultations to determine the best hair solutions.
Our specialists use premium, formaldehyde-free products for all treatments.
Expertise in Afro-Caribbean, European, and mixed-textured hair care.
Custom hair systems tailored to match natural texture and colour precisely.
Award-winning salon with international client recognition.

Associations and certifications

Hair Salon of the Year - North London Region

What people say

Best salon in town Friendly and professional Incredible results No wait times Expert advice

Website

Update Listing

Services

Micro Rings

Micro Ring extensions use small metal rings to attach premium human hair strands to natural hair. This glue-free, heat-free method suits all hair types, offering discreet volume and length. Our specialists match textures precisely, including Afro-relaxed and kinky straight options, ensuring natural blends. The technique protects natural hair integrity while providing durable, low-maintenance results lasting several months.

KeraStraight

KeraStraight is a semi-permanent keratin treatment that straightens and strengthens hair for 4-6 months. Using low-pH proteins, it repairs damage, eliminates frizz, and enhances shine without formaldehyde. Ideal for all hair types, including Afro and mixed-textured hair, it improves manageability and growth. Regular Boost treatments maintain results, with clients reporting up to 6 inches of annual hair growth when combined with aftercare advice.

Brazilian Knots

Brazilian Knots attach individual hair strands using elastic thread, avoiding glue, heat, or braiding. This method suits all hair types, providing secure, long-lasting extensions (3-4 months) that grow with natural hair. The technique preserves hair health, allows easy styling, and offers custom colour and texture matching. Clients appreciate the lightweight feel and maintenance-friendly nature compared to traditional extension methods.

Afro Hair

Our Afro Hair service specialises in protective styles like Ghana cornrows, crochet braids, and custom weaves tailored to Afro-Caribbean textures. We prioritise hair health while creating versatile, culturally resonant styles. Treatments focus on moisture retention, growth stimulation, and damage prevention, using products suited to 4B/4C hair types. Consultations address specific concerns like breakage or transition phases from chemical relaxers.

Wigs/Weaves

We create custom wigs, partials, and volumisers for hair loss solutions using premium human hair. Measurements ensure perfect fit and natural appearance, with options for clip-in or permanent attachment. Services include custom colour matching, texture blending, and styling within our salon. Partials address specific thinning areas while maintaining natural hair access, offering discreet coverage with flexibility for daily wear and special occasions.

Questions

Do you offer consultations before hair extension application?

Yes, we provide free detailed consultations to assess hair suitability and recommend appropriate extension methods.

Are your keratin treatments safe for Afro-textured hair?

Yes, we specialise in KeraStraight treatments for Afro and mixed-textured hair, with extensive experience since 2019.

Can Brazilian Knot extensions damage natural hair?

No, this method avoids tension, glue, or heat, making it one of the safest extension techniques available.

Do you provide custom hair systems for hair loss?

Yes, we create bespoke wigs, partials, and volumisers tailored to individual measurements and hair characteristics.

What hair types can receive your services?

We cater to all hair types including European, Afro-Caribbean, Asian, and mixed-textured hair.

How long do micro ring extensions last?

With proper care, micro ring extensions typically last 3-4 months before requiring maintenance.

Reviews (4)

Write a Review

A. Duck With An Umbrella

Jan 06, 2022 Report

I had a keratin treatment with Marietta and am so happy with the results. My hair was sleek shiny and soft after each wash. Definitely going back for my boost treatment.

Jess Messense

Dec 26, 2021 Report

First time going to Hair definitions and will definitely continue to visit. Marietta is a gem in person and with hair. When a person does something and makes it look effortless.She understands different hair types and met my hair needs. She is very fair and good with pricing, unlike other hairdressing places that add extras to price. Thank you hair definitions.

Julia Osa

Nov 30, 2021 Report

Got the keratin treatment done. She was patient enough to answer all my questions and suggest treatments suitable for my hair texture. Treatment left my hair feeling smooth, silky and ultra manageable. Will definitely recommend.
Marietta can handle 4c hair. She recommended the aura treatment if I wasnt satisfied with the keratin results

Yolanda William

Sep 11, 2021 Report

Positive:Cleanliness,Professionalism,Punctuality,Quality
It has taken my years to find a salon that is professional and good quality. I am extremely happy with their service, and will definitely be coming again. Highly recommended.
Services:Braids,Hair extensions