Frequently Asked Questions

Get answers to common questions about Fusio-Dose by Kerastase.

A typical Fusio-Dose appointment lasts about 20 to 30 minutes, including consultation, product blending, application, and processing time. Timing can vary with hair length, density, and any additional services booked the same day.

For most clients, a Fusio-Dose every three to four weeks maintains optimal benefits; however, frequency depends on hair condition and goals. Your stylist will recommend a personalized schedule based on texture, damage level, and maintenance routine.

Yes. Fusio-Dose formulations are designed to work on color-treated and chemically processed hair, addressing specific damage and preserving color vibrancy. Your stylist selects gentle, color-safe concentrates to strengthen fibers while minimizing fading and maintaining tone.

Absolutely. Certain booster blends focus on smoothing and humidity resistance, sealing the cuticle to reduce frizz and flyaways. Combined with recommended Kerastase homecare and styling products, results can be long-lasting and more manageable in humid conditions.

Your stylist performs a detailed consultation, assessing scalp, hair density, porosity, and damage. They select a concentrate and serum base from Kerastase to target hydration, repair, or shine, then mix and apply the bespoke formula on the spot.

Yes. We recommend using Kerastase homecare products designed to complement your Fusio-Dose treatment, avoid harsh clarifying shampoos for a few days, minimize heat styling when possible, and follow your stylist’s tailored routine to extend results between salon visits.