Main content
Fusio-Dose: A Personalized In-Salon Hair Treatment

Fusio-Dose: A Personalized In-Salon Hair Treatment

When hair is dry, lacks luster, or simply is not at its best, Fusio-Dose is the
signature Kérastase hair treatment, available exclusively in salons. The hair is
quickly transformed and restored to its full potential.
find a salon



Kerastase Fusio-Dose Your Personalized Hair Treatment

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. When hair begins to exhibit signs of stress, there is a quick, easy fix available at your nearest Kérastase salon—Fusio-Dose. It is a system of concentrated care formulas and boosters that your hairdresser can mix for you personally, resulting in hair that is soft, shiny and incredibly healthy.







Kerastase Fusio-Dose Your Personalized Hair Treatment

5 Concentré 6 Boosters


There are over 30 different combinations to address everything from dullness to breakage, color care and proper nutrition. The concentré addresses the primary concerns, while the booster addresses a secondary issue, so you can have the best of both worlds. Hair is visibly healthier, shinier and stronger. When you and your hair need a boost, Fusio-Dose is the answer.





Your Personalized Treatment


Your hairdresser will diagnose your hair and create a freshly-mixed formula that specifically targets your current hair concerns with the correct blend of concentrated actives.

Kerastase Fusio-Dose Your Personalized Hair Treatment




Kerastase Fusio-Dose Your Personalized Hair Treatment




Kerastase Fusio-Dose Your Personalized Hair Treatment




Kerastase Fusio-Dose Your Personalized Hair Treatment




Discover Related Articles

Discover how we combine our deep knowledge of hairdressers and their clients to imagine a world of hair care products that would exceed expectations

10 Reasons To Love Elixir Ultime Hair Oil

10 Reasons To Love Elixir Ultime Hair Oil

It’s been a decade of iconic shine. Let’s celebrate the luxurious hair oil’s tenth
anniversary by counting the ways we love this gleam-inducing liquid gold.
The Secret Weapon For Healthy, Long Hair

The Secret Weapon For Healthy, Long Hair

So you want stronger, longer hair, but you’re addicted to the blow dryer.
Not a problem. Now Extentioniste Thermique blow dry primer protects
hair up to 450°F with 90% less breakage* after 1 application, so you can
feel free to style away. Your hair stays strong while it grows long. Voila!
(*vs. non-conditioning shampoo).
What Kind of Blonde Are You?

What Kind of Blonde Are You?

There are as many types of blondes as there are women in the world. Some keep it subtle, others want all the drama. We’ve identified six iconic levels of blonde along the spectrum—with Blond Absolu routines to match. What kind of blonde are you?
The Exceptional Anti-Aging Ritual For Scalp and Hair

The Exceptional Anti-Aging Ritual For Scalp and Hair

Experience this 20-minute, 6 step in-salon hair treatment for total
scalp relaxation and revitalize aging hair.


Find Your Nearest Salon

Far more than the place to get your root touch-up or an occasional trim, book an appointment at your nearest Kérastase salon for a complimentary personalized hair diagnosis.


Find a Salon


Services Your Personal Care





Fusio-Dose In Salon

Learn about the signature in-salon service that transforms
hair quality in under 5 minutes.


Learn More


The Right Products for You

Take the online hair diagnostic to find the best hair care
and treatment mix for your hair.


Start Now






Sign Up For Email

Sign up and enjoy 15% off your first order.

Your Benefits

  • Access exclusive offers
  • Shop new products first
  • Receive personalized hair care recommendations
  • Enjoy coveted stylist tips
  • Follow the latest hair care trends
Orientation message
For the best experience, please turn your device