If your hair feels dry, dull, frizzy, or just tired, one treatment can change how it looks and feels in a single visit. The Kerastase Fusio-Dose treatment is a custom in-salon ritual that targets two hair concerns at once and takes less than five minutes. At Slope Suds Salon in Park Slope, we mix your Fusio-Dose fresh, so you leave with shine and softness you can see and feel right away.
What Is the Kerastase Fusio-Dose Treatment?
The Kerastase Fusio-Dose treatment is a professional liquid care treatment that is only available in salons. It is not a mask you buy off a shelf, and it is not a one-size-fits-all product. Your stylist combines two parts: a Concentre that treats your main hair concern, and a Booster that targets a second goal, like shine, nourishment, or frizz control. The two are blended fresh at the backwash and applied to your hair in under five minutes.
Kerastase says the molecules are up to 100 times smaller than those in traditional haircare, so the formula gets right into the hair fiber instead of sitting on the surface. In Kerastase’s own salon test, 100 percent agreed it does not weigh hair down, and 79 percent said it profoundly transforms hair.
How a Fusio-Dose Works: Diagnose, Blend, Apply
Every Kerastase Fusio-Dose treatment at Slope Suds Salon starts with a diagnosis. Your stylist looks at your hair and scalp, asks what is bothering you, and picks the Concentre that matches your main concern. Then you talk about the second result you want, whether that is more shine, more nourishment, more strength, or more control, and your stylist picks the Booster to match.
With six Concentres and five Boosters, there are up to 30 combinations, so your Fusio-Dose is made for your hair alone. The stylist blends it fresh, applies it at the basin in under five minutes, and your appointment carries on as normal. There is no extra waiting, and the result is immediate.
The Concentres and Boosters: Which Mix Is Right for You?
The Concentre handles your primary concern. Blond Absolu is for blonde hair that needs brightness and care for brassiness. Nutritive is for dry hair that needs deep nourishment. Genesis is for weak hair prone to breakage. Resistance is for damaged hair that needs strength. Chroma Absolu is for color-treated hair that needs protection and shine. Curl Manifesto is for curls that need definition and bounce.
The Booster handles your second goal. Nutrition adds moisture and softness. Reconstruction rebuilds structure with proteins. Brillance locks in color and shine. Anti-Frizz controls frizz and seals the cuticle. Cicablond cares for bleached blonde hair. Your stylist will explain your mix, so you always know what is going onto your hair and why.
Who Should Get a Fusio-Dose?
A Kerastase Fusio-Dose treatment is for almost anyone whose hair is not behaving. Dry or brittle hair, color that fades too fast, frizz the moment you step outside, blonde gone brassy, there is a mix for that. It works on fine, thick, curly, and color-treated hair, because the formula is chosen for your hair, not for an average head of hair.
It is also perfect before a big event. Because the result is instant, a Fusio-Dose is a wonderful add-on before a wedding, a party, a photoshoot, or a holiday. You walk out with hair that looks freshly done, and most clients come back for a fresh Fusio-Dose every four to six weeks.
Fusio-Dose vs. a Regular Hair Mask
A regular hair mask is a good habit between salon visits. But a mask is the same product for everyone, and most of it sits on the surface. A Kerastase Fusio-Dose treatment is different in three ways: it is diagnosed by a professional, blended fresh for your two concerns, and its smaller molecules reach deeper into the hair fiber.
Think of it this way: a mask is like a good moisturizer, and a Fusio-Dose is like a facial planned for your skin. Both help, but only one is made for you, which is why a Fusio-Dose leaves hair softer, shinier, and easier to manage than a mask alone.
What Happens When You Come In
Coming in for a Kerastase Fusio-Dose treatment at Slope Suds Salon is easy. Book online or call (718) 788-7837, and come to 138 7th Ave in Park Slope. Your stylist will diagnose your hair, mix your Fusio-Dose, and apply it at the basin in under five minutes, usually as part of your haircut, color, or blowout. No separate visit, and no extra time.
Not sure which treatment your hair needs? The diagnosis is part of the service, and your stylist will talk you through it before anything is mixed. Bring your questions, and tell your stylist what your hair has been doing lately. That is how we make sure your Fusio-Dose does exactly what you want.
Frequently Asked Questions
1. What is the Kerastase Fusio-Dose treatment?
It is a custom in-salon treatment from Kerastase. Your stylist blends one Concentre for your main concern with one Booster for a second goal, and applies the fresh mix at the backwash in under five minutes. Six Concentres and five Boosters make up to 30 combinations.
2. How long does a Fusio-Dose take?
The application takes under five minutes, added to your regular appointment, so a haircut, color, or blowout takes no longer than usual. The diagnosis happens while your stylist is already working with you.
3. How long do the results last?
You will see the result right away, and it lasts for weeks. Most clients come back every four to six weeks, often with their regular cut or color, to keep the shine and softness going.
4. Can I do Fusio-Dose at home?
No. Fusio-Dose is salon-only. The Concentres and Boosters are professional products, and the mix must be diagnosed and blended by a trained stylist. At-home masks are great between visits, but they are not the same treatment.
5. Is Fusio-Dose good for color-treated or blonde hair?
Yes. Chroma Absolu and Brillance mixes are made for color-treated hair, helping color look brighter and last longer. Blond Absolu and Cicablond mixes are made for blonde and bleached hair, reducing brassiness and adding care and shine.
6. Will Fusio-Dose weigh my fine hair down?
No. Fusio-Dose is a lightweight liquid, not a heavy cream, and in Kerastase’s own test, 100 percent agreed it does not weigh hair down. Your stylist will choose a mix that suits fine hair, so you get softness and shine without losing volume.
7. How do I book a Fusio-Dose treatment at Slope Suds Salon?
Book online through our website or call (718) 788-7837, and come to Slope Suds Salon at 138 7th Ave in Park Slope, Brooklyn. You can add a Fusio-Dose to any haircut, color, or blowout appointment, or book a consultation and let your stylist design the right mix for your hair. We are open Tuesday and Thursday 11am to 8pm, Wednesday and Friday 10am to 7pm, and Saturday and Sunday 10am to 6pm, and closed on Mondays.
If your hair has been feeling dry, dull, or difficult, come and try the Kerastase Fusio-Dose treatment at Slope Suds Salon. Book your appointment today, and leave with hair that looks healthier, feels softer, and is easier to love every day.