Kerastase Fusio-Dose - Concentré Resistance

It is a concentrated hair treatment designed to strengthen weakened hair fibers, reduce breakage, and improve overall hair health and appearance.

Yes, you will need a Kérastase Fusio-Dose Applicator and a compatible Kérastase Fusio-Dose Booster, as this is a two-part custom treatment system.

This is an intensive treatment. Typically, it can be used once a week or as needed, depending on the severity of hair weakness. Consult with a professional stylist for personalized recommendations.

Yes, this treatment is particularly beneficial for weakened hair, including color-treated or chemically processed hair, to help restore strength and vitality.

The Concentré provides the core active ingredients for a specific concern (like Resistance), while the Booster adds complementary benefits and activates the formula for personalized treatment.

Each Concentré bottle is designed for a single-use application when combined with a Booster. The total capacity is 120ml, but it's mixed and dispensed for one treatment session.

Ensure the Concentré bottle is properly inserted into the Booster and the entire unit is shaken vigorously. Check that the Booster is also correctly attached.

You may have used too much product, or it was not rinsed out thoroughly. Ensure you are using the correct dosage and rinse completely. Consider using a lighter Booster if your hair is very fine.

Ensure you are using the correct Fusio-Dose Booster for your hair concern and that the product is being applied evenly throughout the hair, focusing on the most damaged areas. Consistent use as directed is key.