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About Us

Welcome to the Home of Clip-In Hair Extensions London

Extension Professional is a luxury hair extension brand offering superior quality 100% human clip in hair extensions created by London hair extension specialist, Louise Bailey.

Clip-in hair extensions in box packaging

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Clip in Hair Extensions by Extension Professional

If you are looking to buy clip in hair extensions in London or online, look no further than Extension Professional clip in Remy human hair extensions, voted one of the best hair extension brands by beauty bloggers and press alike.

Clip in extensions are an easy way to add instant length, volume and thickness to your natural hair without committing to permanent hair extensions. Clips ins are also great for experimenting with colours and lengths before deciding on a new look – or just as a nice one off change for a special occasion – as they can be easily clipped in and styled in minutes and then removed just as easily.

Our entire range of clip in hair extensions are 100 percent real human hair and can be washed and styled just like your natural hair. The Extension Professional brand was founded by Hair Extensions London expert Louise Bailey and has been worn and quoted as the best hair extensions by many celebrities including Ellie Goulding and Caroline Flack.

If you would like to buy clip in hair extensions near you in London, you can pop into Beauty Club London in Oxford Circus to see the quality of the real human hair in person, and have a bespoke colour match service with one of the extension professionals who can show you how to apply your new clip in hair extensions.

If you are buying clip in extensions online and need help with colour matching your hair to the extensions, send a picture of your natural hair to claire@extensionprofessional.co.uk and one of the Extension Professional team can help you choose the perfect colour to give you seamless clip in hair extensions with your natural hair.

But if you are looking for a more permanent fix to thicken or lengthen your thinning hair, check out Louise Bailey’s full list of Hair Extensions London services including tape extensions, micro-rings, and keratin bonds.

Call us now for a free consultation or for any help choosing your hair extensions: 0203 4165136

To view the full range of Extension Professional clip in extensions and to buy clip in hair extensions online, click here.

Why choose our clip in hair extensions?

Company founder Louise Bailey has spent many years sourcing and developing the finest products and hair. She is constantly looking for new and innovative products for our clients.

  • 17 clip-in shades available

    16 inches in length and weighing 160g.

  • Staged wefts for a seamless finish

    Blend perfectly with natural hair, with no lumps or bumps.

  • Pre-layered extensions for a natural fall

    Achieve volume, extra thickness and ‘swishable’ length with a natural finish.

  • Available in stores

    Stocked by Harrods hair and Beauty and Duck & Dry (Oxford Circus).

I adore Extension Professional – they are such amazing quality. I have used them for several years and I don’t think I could live without them! I would recommend these extensions to everyone – they’re the best in the business.

— Brooke Kinsella MBE

I have been seeing Louise Bailey and using the Extension Professional products for the past 6 years. I am regularly complimented by hairdressers saying what great quality the extensions are. Louise is on my speed dial!

— Sarah Curren MBE

Having tried clip-in extensions before I wasn’t a regular user for all the reasons that everyone is put off: too time-consuming to apply, uncomfortable to wear and with an often less-than-pleasing aesthetic outcome. Extension Professional’s clip-in extensions are the opposite of this. So quick and easy to apply in just two pieces, they are almost impossible to get wrong, with the result that I wear them at least a few times a week to events or just when I need a little boost. I like that they can be worn wavy if air dried to fit in with my natural hair, but are also super easy to tong or straighten. I’m a complete convert.

— Lauren Milligan, Fashion Journalist

So Louise_Bailey rules at hair. Thank you to her and Extension pro for giving me a perfect barnet.

— Ellie Goulding, Singer

Louise is quite simply the mistress of clip-in extensions, she quelled my anxiety about them looking fake and proved that clip-ins can look not only completely authentic, but incredibly luxurious too. Extension Professional clip ins were the perfect fit for my wedding day.

— Joanna Mcgarry, Associate Editor Stylist Magazine

I have worn clip-in extensions for years but none have compared to Extension Professional.  The two wefts transform my hair in minutes into a longer, thicker, glossy look that I would never had been able to achieve before. I also love the luxury packaging, which makes them easy to store. Selecting your colour was really simple too and I didn't need to have them cut in my hair as they were pre cut to naturally blend into my own hair. After years of wearing clip-in extensions I was nervous about having bonded extensions.  You hear and see so many horror stories.  The result was incredible. The bonds were so neatly and perfectly done and the effect so natural that I've had them for every holiday since and they last for months. 

— Lauren Stevenson, Aisle 8

After years of wearing clip-in extensions I was nervous about having bonded extensions.  You hear and see so many horror stories.  The result was incredible. The bonds were so neatly and perfectly done and the effect so natural that I've had them for every holiday since and they last for months.

— Nadine Baggott, Beauty editor HELLO! Magazine