10 Things You Should Know About Fusio-Dose Hair Treatment

At Hairloom Collective, we believe the best results come from personalised hair care. Kérastase Fusio-Dose is a professional in-salon treatment, custom-blended by our stylists to address your hair’s specific needs in the moment.

Mixed fresh at the basin, each Fusio-Dose delivers targeted, instant results - leaving your hair feeling healthier, softer, and more manageable in just a few minutes. It’s the perfect luxury enhancement to any cut or colour service at Hairloom Collective.

1. What is Fusio-Dose?

Fusio-Dose is a professional in-salon treatment by Kérastase, exclusively available at Hairloom Collective. It uses advanced liquid-care technology to deliver instant, visible hair transformation. 

Each treatment is custom-blended using a combination of a Concentrate and a Booster, creating a powerful, personalised solution that works as the ultimate quick-fix for all hair types and concerns.

2. What is the difference between the Booster vs. Concentrate?

The Concentrate targets your primary hair concern, identified by your stylist during a professional hair diagnosis.

The Booster addresses a secondary concern, allowing us to personalise your treatment further - whether that’s added shine, nourishment, strength, repair, or smoothness. Together, they work in perfect synergy for optimal results.

3. How many mixes are possible with Fusio-Dose?

Fusio-Dose is a fully custom hair treatment. With 6 Concentrates and 5 Boosters available, there are up to 30 different mix combinations. This flexibility allows us to target two unique hair concerns in one application, ensuring your treatment is tailored precisely to your hair’s needs at every visit.

4. Who is this custom hair treatment right for?

Fusio-Dose is suitable for all hair types. Even hair that’s well cared for can benefit from an occasional boost. Factors such as heat styling, colouring, stress, and environmental exposure can leave hair feeling dry, dull, or difficult to manage. Fusio-Dose helps restore your hair’s health quickly, leaving it feeling revived and performing at its best.

5. How does it work?

Before your treatment, your Hairloom Collective stylist will complete a professional hair diagnosis to assess what your hair needs most. 

Based on this, a personalised Concentrate and Booster are selected, freshly mixed, and applied at the backwash. In under five minutes, your tailored treatment is complete - leaving your hair feeling softer, stronger, and visibly healthier.

6. Is Fusio-Dose the same as a hair mask?

While Fusio-Dose replaces a traditional in-salon mask or fondant, it is not the same.

Fusio-Dose uses ultra-fine molecules, significantly smaller than those found in traditional treatments, allowing deeper and faster penetration. The formula is also enriched with skincare-inspired actives for high-performance results without heaviness.

7. Can I do a Fusio-Dose at home?

No. Fusio-Dose is a Kérastase-exclusive professional salon service.

Each formula requires a trained stylist to diagnose your hair and select the correct combination. This ensures your treatment is perfectly matched to your hair’s needs - something that can’t be replicated at home.

8. How do I know which Fusio-Dose mix is right for me?

Your Hairloom Collective stylist will guide you every step of the way.

We perform a professional hair consultation and discuss your hair goals before selecting the most suitable Concentrate and Booster. Your formula can also be adjusted at each visit as your hair changes over time.

9. How often can I book in for a Fusio-Dose custom hair treatment?

You can enjoy a Fusio-Dose treatment at every salon visit.

Because each formula is freshly mixed and tailored, your stylist can adapt the treatment each time to suit your hair’s current condition and evolving needs.

10. What are the effects of Fusio-Dose on hair?

Fusio-Dose delivers visible results in under 5 minutes.

Hair feels instantly softer, smoother, stronger, and more manageable, with a custom blend that addresses two hair concerns in one application - without weighing the hair down.

Your hair doesn’t need guesswork - it needs a treatment designed just for you.

Book your Fusio-Dose treatment at Hairloom Collective and experience visible results in just minutes