If you’ve heard people talking about the Kérastase Fusio Dose and wondered what all the fuss is about – wonder no more. This is one of the most talked-about treatments across our salons right now. Once you’ve tried it, you’ll completely understand why. Here’s everything you need to know.
1. It’s completely bespoke – every single time
No two Fusio Dose treatments are the same. Before your stylist applies anything, they’ll assess your hair and select the exact combination of active ingredients that your hair needs right now. Think of it like a skincare consultation, but for your hair. The result is a treatment that is entirely yours.
2. It tackles two concerns at once
One of the most impressive things about the Fusio Dose is its ability to address two different hair concerns in a single service. Dry and colour-treated? Fine and prone to frizz? Lacking density but also dealing with scalp sensitivity? Your stylist will build a formula that works on both. They will build it simultaneously, without compromise.
3. The formula is built from over 30 possible combinations
A Concentré targets your primary concern – hydration, repair, density, frizz control, colour protection and more – while a Booster addresses a secondary issue. With over 30 possible combinations, there is genuinely something for every hair type, texture and concern. With so many options, there’s a Fusio-Dose formula for everyone. Headmasters stylists craft a blend tailored to your specific hair type and concerns. This ensures a completely customised experience. Struggling with dry, frizzy, or thinning hair? Fusio-Dose offers a solution that’s uniquely yours.
4. It’s inspired by skincare science
The Fusio Dose uses active ingredients straight out of advanced skincare – ceramides, hyaluronic acid, niacinamide, collagen peptides and more. These are the kinds of ingredients you’d find in a high-end facial serum. They are applied directly to your hair fibre for results that go far beyond a standard conditioning treatment.
5. Now available with a bespoke scalp serum
The newest addition to the Fusio Dose family – and a personal favourite across our salons – is the Fusio Dose + Serum. This upgraded version pairs your personalised treatment with a leave-in scalp serum. That means your scalp gets just as much attention as your lengths and ends. Healthy hair starts at the scalp, and this is the treatment that truly takes that seriously.
Kérastase Fusio Dose from £22 | Fusio Dose + Serum £28
6. There’s a version for gloss lovers too
If your priority is shine – the kind of glass-like, light-reflecting finish that makes hair look almost unreal – ask your stylist about Fusio + Gloss. Layered with Gloss Absolu, this option penetrates deeper into the hair fibre for lightweight, long-lasting luminosity. You’ll still be noticing this days later.
Kérastase Fusio + Gloss £28
7. The results are instant – no waiting required
This isn’t a treatment where you need to wait three washes to see the difference. The Fusio Dose delivers visible, tangible results from the moment your blow-dry is finished. Smoother, shinier, healthier – you’ll feel it before you’ve even left the chair. And the results last for up to five washes, so that just-out-of-the-salon feeling sticks around long after your appointment.
8. It’s available exclusively in professional salons
The Fusio Dose cannot be replicated at home – it requires professional application and the precise technique of a trained stylist to work to its full potential. The concentration of active ingredients is significantly higher than anything available off the shelf. This is exactly what makes the in-salon results so impressive.
9. It’s a seamless add-on to any appointment
Whether you’re coming in for a cut, a colour, a blow-dry or any other service, the Fusio Dose slots in beautifully without adding significant time to your appointment. It’s applied after shampooing, in place of your conditioner, and takes just a few minutes. Maximum impact, minimum effort – our favourite kind of treatment.
10. Your stylist will always know which combination is right for you
Not sure where to start with 30+ combinations? That’s exactly what your Headmasters stylist is there for. They’ll assess your hair at your appointment and take care of the rest. This leaves you to relax, enjoy the head massage that comes with the application, and trust that your hair is in the very best hands.
Ready to try it? Book an appointment at your nearest Headmasters salon today and ask your stylist about adding a Fusio Dose to your next visit. We promise you won’t regret it.
For full treatment pricing, visit our price list – and for treatment inspiration, head to @headmastersuk on Instagram.
