Fine hair is often perceived as delicate, flat, and difficult to style. It lacks volume, becomes heavy quickly, and can sometimes appear dull. This type of hair, more fragile than others, requires suitable care that can strengthen the fiber without weighing it down. This is precisely where the expertise of Kérastase comes into play. With its iconic ranges, Kérastase has developed innovative formulas to offer fine hair a new density, radiant shine, and an incomparable lightness. Each product has been designed to address the specific needs of this hair type, from the scalp to the tips. Every head of hair is unique, but some face specific issues: dryness, breakage, lack of shine, or fragility against external aggressions. To meet these needs, Kérastase has created expert ranges that combine hair science and high-performance care. Thanks to its innovative formulas, the brand offers hair a complete ritual that nourishes, protects, strengthens, and enhances. When the fiber lacks nutrition, hair becomes dull, rough, and difficult to style. The Nutritive range provides the solution with the Lait Vital, a lightweight treatment that deeply nourishes without weighing down, and the Masquintense, a cult mask that restores softness, flexibility, and shine. These treatments enriched with plant-based proteins and niacinamide intensely hydrate and leave hair enhanced, day after day. Hair loss related to breakage is a common concern. With the Genesis range, Kérastase targets this issue with formulas that strengthen the fiber from within. The Fondant Renforçateur is a daily treatment that gently detangles, fortifies, and reduces breakage caused by brushing. The result: stronger, more resilient hair that looks visibly denser. For colored or bleached hair, preserving shine is essential. The Gloss Absolu range offers the Insta Glaze, a perfecting treatment that provides an instant "gloss" effect. Its formula with lactic acid and glycine illuminates the hair, smooths the cuticles, and revives color intensity. Ideal after coloring, it protects the fiber and delivers a luminous and silky result.