What is a Fusio Dose treatment?

Fusio-Dose is a Kérastase service, only available in salon. It’s a liquid care technology, for instant hair transformation. Consisting of a custom-blended mix of a Concentré and a Booster, it’s the ultimate quick-fix problem solver for all hair types.

Which combination is best for your hair?

The concentré addresses the primary hair concerns. These hair needs are identified by the stylist during the diagnosis steps. The booster addresses your secondary hair concern you want to target, such as shine, nutrition, reparation, etc.


  1. How many mixes are possible?
    • Fusio-Dose is a custom hair treatment. With 6 Concentres and 5 Boosters available, there are up to 30 different mixes possibilities. It allows you to target two unique hair concerns at the same time.
  2. Who is this custom hair treatment right for?
    • Even those who take excellent care of their hair sometimes need a boost. Stress, styling, and environmental factors can weaken the hair gradually, causing it to look dry and dull, behaving in strange, unruly ways. With this treatment your hair quickly transforms and restores to its full potential.
  3. How does it work?
    • Before beginning your treatment, your stylist will diagnosis your hair. Depending on what your hair needs most, they will select a [concentrate] and [Booster] to combine and spray it onto the hair, at the backwash. Within 5-minutes your tailor-made treatment will be complete, and you’ll be flaunting lush, re-energized hair all day, everyday!
  4. Is a Fusio-Dose treatment the same as a hair mask?
    • It replaces your fondant or mask in-salon treatment, but it isn’t the same. Fusio-Dose molecules are up to 100 times smaller than a traditional haircare product and it is supplemented with skincare actives.
  5. Can I do a Fusio-Dose at home?
    • No, it is a Kérastase exclusive salon service. The Fusio-Dose custom-blended formula requires a professional evaluation of your hair to determine the best mix for you.
  6. How do I know which Fusio-Dose mix is right for me?
    • Your hairdresser will perform a detailed professional diagnosis of your hair to define your main hair need and pick the right concentre. Your hairdresser will then discuss with you your hair goals to pick the right booster.
  7. How often can I book in for a Fusio-Dose custom hair treatment?
    • Every salon visit! You stylist will diagnose your hair and create a freshly mixed formula that specifically targets your current hair concerns with the correct blend of concentrated actives. Your stylist will then recommend and adapt the formula each time to suit your hair needs as they evolve with every visit.
  8. What are the effects of Fusio-Dose on the hair?
    • Fusio-Dose transforms your hair in less than 5 minutes, with a custom-blended mix that addresses 2 hair needs in 1 application!

Ask your stylist about Fusio-Dose treatments at your next booking or add it as a note when you are scheduling an appointment. Book Now.