Kérastase Fusio-Dose — Complete Guide to Custom Professional Treatment
Fusio-Dose is a customized professional treatment system designed to offer instant transformation without weighing down the hair. The protocol is based on combining a Concentrate, which addresses the hair's primary need, and a Booster, which targets a secondary need or desired cosmetic result.
Understanding the Fusio-Dose Concept
| Element | Key Takeaway |
|---|---|
| Concentrate | Treats the hair's primary need: repair, nutrition, color, blonde, curl definition, or volume. |
| Booster | Adds a targeted secondary response: nutrition, shine, anti-frizz, reconstruction, or blonde protection. |
| Customization | Up to 30 possible combinations depending on the scalp and hair fiber diagnosis. |
| Technology | Ultra-concentrated liquid treatment with molecules up to 100 times smaller than traditional treatments. |
| Desired Result | Fast, lightweight, and targeted transformation, without prolonged waiting time. |
Why Fusio-Dose Stands Out:
The system is inspired by skinification, incorporating advanced active ingredients from skincare science. Thanks to its liquid textures and small molecular size, the treatment acts quickly on the hair fiber, while maintaining a lightweight feel.
The system is inspired by skinification, incorporating advanced active ingredients from skincare science. Thanks to its liquid textures and small molecular size, the treatment acts quickly on the hair fiber, while maintaining a lightweight feel.
Concentrates — Primary Need
Concentrate 1
Concentré Blond Absolu
Target: Bleached or highlighted blonde hair | Mission: Neutralize unwanted tones and revive blonde radiance
Description
Restorative treatment designed to provide instant luminous blonde while helping to correct yellow or brassy tones caused by oxidation.
Benefits
- Helps neutralize false tones
- Illuminates blonde hair
- Complements an in-salon blonde maintenance routine
Instructions for use
- Remove the cap from the concentrate.
- Attach the chosen booster to release the active ingredient.
- Install the sprayer, shake, and spray onto washed, towel-dried hair.
- Rinse thoroughly after application.
Professional tip: ideal for blonde hair that lacks radiance or tends to yellow between appointments.
Concentrate 2
Concentré Curl Manifesto
Target: Curly to very curly hair | Mission: Define and hydrate curls
Description
Deep defining and strengthening treatment designed to enhance natural texture and improve curl definition.
Benefits
- Intensely hydrates
- Helps smooth the hair fiber
- Promotes better curl definition
Instructions for use
- Fuse with the booster adapted to the diagnosis.
- Apply 4 to 6 pumps per 3 cm section.
- Massage the length then rinse immediately.
Concentrate 3
Concentré Genesis
Target: Fragile or volumeless hair | Mission: Strengthen and add body
Description
Deep strengthening treatment that visually amplifies the hair fiber while maintaining a lightweight effect.
Benefits
- Provides resistance and elasticity
- Helps amplify the hair fiber
- Adds body to the hair without weighing it down
Instructions for use
- Activate with the selected booster.
- Distribute evenly on towel-dried lengths.
- Detangle with a wide-tooth comb, then rinse.
Concentrate 4
Concentré Chroma Absolu
Target: Color-treated hair | Mission: Nourish and protect color
Description
Sealing treatment designed to strengthen the fiber immediately after a coloring service or between salon visits.
Benefits
- Helps protect color
- Strengthens hair weakened by chemicals
- Ideally complements a post-color ritual
Instructions for use
- Mix with the chosen booster.
- Apply to damp hair after washing.
- Massage from root to tip then rinse.
Concentrate 5
Concentré Nutritive
Target: Dry to very dry hair | Mission: Restore suppleness and nutrition
Description
Deep nourishing treatment that helps restore hair fiber vitality and improve comfort for hair lacking lipids.
Benefits
- Provides more suppleness
- Helps compensate for lack of sebum
- Facilitates detangling
Instructions for use
- Combine with the chosen booster.
- Shake vigorously.
- Spray on approximately 3 cm sections and work into the hair fiber.
- Rinse immediately.
Concentrate 6
Concentré Résistance
Target: Brittle or very damaged hair | Mission: Repair and strengthen the structure
Description
High-performance instant repair treatment for weakened, brittle hair or hair with damaged ends.
Benefits
- Helps fill cracks in the hair fiber
- Strengthens the intercellular cement
- Improves resistance to breakage
Instructions for use
- Mix with the booster.
- Apply particularly to damaged areas.
- Rinse immediately after massage and detangling.
Professional tip: a precise elasticity diagnosis is recommended before choosing this concentrate.
Boosters — Secondary Need
| Booster | Objective | Highlighted Active Ingredients |
|---|---|---|
| Cicablond | Preserve and protect blonde hair | Vitamin E, Amino-Brilliance |
| Nutrition | Intensely nourish dry hair | Camelia oil, nourishing complex, royal iris |
| Anti-Frizz (Discipline) | Control frizz and smooth the hair | Polypeptides, Morpho-Keratin |
| Shine | Seal the cuticle and amplify radiance | Lactic acid, Amino-Shine, zinc gluconate |
| Reconstruction | Repair the most worn areas | Vegetable protein, anti-wear complex, resurrection sap |
Logic of the Fusio-Dose Duo:
The concentrate addresses the primary need. The booster refines the final result according to the aesthetic desire or secondary fragility observed during the diagnosis.
The concentrate addresses the primary need. The booster refines the final result according to the aesthetic desire or secondary fragility observed during the diagnosis.
Professional Protocol — from Evaluation to Application
| Step | What to do |
|---|---|
| 1. Diagnosis | Listen to the hair history, observe diameter, dryness, shine, elasticity, and determine primary and secondary needs. |
| 2. Preparation | Remove concentrate cap, attach booster until click, wait for complete transfer, install pump and shake. |
| 3. Application at the sink | After shampooing, towel-dry hair, work in 3 cm sections, spray 4 to 6 times per section, massage and detangle. |
| 4. Rinsing | The action is instantaneous. Rinse thoroughly with clear water, without emulsifying. |
Important point: Fusio-Dose is not a classic mask. The treatment works without processing time and must be chosen after a real professional diagnosis.
Fusio-Dose Homelab — prolonging the treatment at home
- Box set of 4 concentrates + 4 boosters + 1 reusable spray applicator
- Program designed for 4 weeks, with one application per week
- Formulas retain the high concentration of active ingredients found in salon treatments
- Prescription and personalization performed in-salon by a professional
- Exclusive salon service, not intended for free selection in e-commerce
Quick FAQ — useful salon answers
| Question | Answer |
|---|---|
| What's the difference from a classic mask? | A mask often targets a single need and requires processing time. Fusio-Dose treats two needs at once and acts instantly. |
| Is it suitable for fine hair? | Yes. The liquid texture and small molecular size help maintain a lightweight result without weighing down the hair fiber. |
| Can it be added to a technical service? | Yes. For example, after coloring to seal the color, or as preparation before certain services depending on the diagnosis. |
| How much time does this add to the appointment? | About 5 minutes, because the action is instantaneous and there is no prolonged processing time. |
| Can I choose my own mix at home? | No. The Fusio-Dose logic relies on a professional diagnosis to determine the right concentrate + booster duo. |
| What if I also have a sensitive or flaky scalp? | The salon protocol can integrate a specific scalp bath or treatment, then apply Fusio-Dose only to the lengths and ends. |
Kérastase Fusio-Dose — Personalized professional treatment offered at RM Coiffure. The best combination always depends on the diagnosis performed in the salon according to hair texture, fiber condition, and desired result.
