Fusio Dose family of professional hair treatments designed to resolve concerns in dry and frizzy hair. It is enriched with highly concentrated active ingredient Niacinamide that deeply hydrates the hair, and instantly transforming it into healthier, softer hair with beautiful shine. Kerastase Fusio-Dose Concentre Nutritive is meant to treat dry hair as the main concern and must be combined with the Kerastase Fusio Dose booster of your choice that activates the treatment and at the same time addresses a secondary hair concern. The beauty of the Fusio-Dose is that you can create a tailor-made solution based on your hair needs and combine different hair treatments into ONE by mixing the concentrate with different types of boosters to address your hair needs. The freshly fused treatment with an initial dose of goodness will fundamentally treat your hair and immediately transform it for lasting results.    Size : 10 x 12ml / 10 x 0.4fl.oz.ml  Note: Please clean the dispenser by spraying warm water through it. It is a reusable sprayer and can be used many times.