Kerastase Fusio Dose is a custom-blended, in-salon hair treatment that handles two hair concerns in one application. Your stylist picks one concentre and one booster after a diagnosis, and the mix goes on after your wash in under five minutes. You’ve tried the masks, the serums, and the weekend oiling, and your hair still won’t cooperate. A quick salon step can change that. The effect is difficult to describe. You notice it over the coming weeks, when your hair falls smoothly over your shoulders and bounces a little as you walk.
Key takeaways

Kerastase Fusio Dose blends one concentrate and one booster into a custom liquid mix, chosen after a hair diagnosis, so two concerns are treated in a single application. The idea is simple. Instead of one product for everyone, the treatment creates a formula for your hair alone. Here’s what goes into it:

The concentre addresses your primary hair concern. The booster treats your secondary one.
Kerastase says its molecules are up to 100 times smaller than those in a traditional haircare product, which is why this behaves differently from a regular mask. (Source)

A Fusio Dose visit has two steps: a diagnosis, then a quick application after a gentle wash.
Diagnosis: Good results start with a proper diagnosis.
Your stylist will:
Application: This is the easy part.

Fusio Dose results last up to five washes, depending on your hair’s condition. That figure comes from Kerastase. Aftercare still matters. Ask your stylist which Kerastase home-care products pair with your mix, and use them as advised so the finish holds as long as possible.

No. Fusio Dose is a Kerastase-exclusive salon service and cannot be done at home. The formula depends on a professional evaluation of your hair, and the wrong pairing wastes the treatment. Your hair deserves a few careful minutes, and Vurve Salon is the perfect place to spend them. Leave the blending to us and relax.
Fusio Dose suits anyone whose hair feels dull, dry, frizzy, or color-tired. Kerastase positions it for all hair types.Stylists commonly recommend it for:
Your diagnosis decides the exact mix, so book a consultation rather than guessing which concentre you need.
A mask is a general product that you apply yourself. Fusio Dose is a diagnosed, custom-blended salon service.
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Kerastase Fusio Dose is worth a visit if your hair needs a quick, targeted fix without a long salon sitting. One concentrate and one booster, chosen after a proper diagnosis, address two concerns at once. The application takes under five minutes, and the results last up to five washes. It isn’t a replacement for your regular hair care. It’s a sharp boost on top of it, and it works best when your stylist matches the formula to your hair rather than the other way around.
Not sure which concentre and booster suits your hair? Our stylists will assess your hair concerns and create a personalized mix for you while you relax in the chair. Book an appointment at your nearest Vurve salon and ask for a Kerastase Fusio Dose consultation.