Hair Treatments

Our selection of hair treatments helps instantly increase the manageability of your hair and can be paired with our recommended specialist home treatments between appointments for longer-lasting effects. Our team will help identify which treatments will be most beneficial to you.

Kérastase Fusio-Dose

Advanced, totally customisable treatments which give your hair an instant transformation.

How it works: The boosters, five concentrated care formulas, are mixed with the concentrates, four powerful active ingredients, offering multiple combinations for a custom-designed treatment to instantly and lastingly transform the hair


Colour Sealer

A Colour Sealer is recommended after every colour service to maintain long-lasting colour radiance, vibrancy and shine, leaving the hair in a visibly better condition.

This treatment, Olaplex, is applied during and immediately following a colour service, or can be done separately.

£25 with a colour service

£35 separately

Permanent Smoothing

The Keratin Express

The Keratin Express treatment is a great conditioning treatment, leaving your hair feeling sleek, smooth, frizz free and all-round easier to manage day to day. Lasts up to 6 weeks.


The Brazilian Blow-Dry

Our Brazilian Blow-Dry treatment, KeraStraight, is a favourite with celebrities. It repairs, smooths, straightens and conditions hair for up to 3 months.

from £125

The X-Tenso Moisturist

Transform rebellious curly or frizzy hair to smooth, silky and shiny hair for up to 60 days.

from £80

Permanent Curls

Permanent Waves

Beautiful soft curls, waves and volume

from £75

Classic Perm

from £80

Our Team

First, our team members are handpicked based on their skill, potential, and personality. They’re then trained to our high standards in everything from technical skills to client experience, making sure that you have an all-around fantastic visit.

We encourage them to take part in opportunities provided through the salon, including photoshoots, music videos, fashion shows, and more, eventually learning how to craft unique, world-class looks for every person who sits in their chair.

Stylists of all levels are encouraged to bring their own style to the looks they create, creating unique looks you wont find elsewhere.

Meet the Team

Client Experience

We offer free consultations to all clients, asking the right questions to understand exactly what you’re looking for and offering effective and exciting solutions.

You’ll receive a head massage during your shampoo, and the chance to relax and unwind while you sit in our comfortable chairs.

Our stylists will explain the steps of your cut, style, colour, or treatment and offer advice on products and treatments that could improve your hair’s health and manageability. They’re also great for a chat!

Whatever your service, our aim is that you leave the salon looking and feeling amazing.

The Space

The drinks are on us.

Get drinks on the house with every appointment, from coffee to beers and Prosecco.

Frequently Asked Questions

We offer an in-depth chat prior to the cut and style. We’re happy to make informed suggestions including styling recommendations to match your lifestyle, hair type, and the amount of time that you want to spend on your hair at home.

We use Kerastase and UNITE Hair.

Brendan O’Sullivan Hair & Beauty (BOS) is located in Amersham New Town, opposite Pizza Express and Boots on Sycamore Road. Our postcode is HP6 5EQ.

We primarily use L’Oréal professional colouring products, as we believe these are the best on the market currently.

The BOS experience includes a full consultation including suggestions on style changes and a cut and style with a top professional stylist in-salon. We’ll also recommend a home care routine to enable you to maintain and style your own look. We also offer free drinks from freshly ground coffee, juices and herbal teas to white and red wine for if you’re feeling adventurous.

Further questions? Give us a call on 01494 434 016

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