Four Haircuts That Take Years Off After 50: Naomi Watts's Curly Bob, Halle Berry's Bob, Sharon Stone's "Bixie" and Milla Jovovich's Layers

"At that age, you cut your hair short." How many times have you heard that line - from a hairdresser, an aunt, a neighbour over coffee? Psychologist Beatriz Romero Martín sees it differently: when a mature woman keeps her hair long, it can be a gesture of autonomy and self-affirmation. Long hair has no age.

But many women past fifty are after something else: a cut that highlights the features of the face and adds movement with little effort. Hairdressers have four suggestions - all give volume at the ends, none goes below the collarbone, and each has a famous ambassador.

A curly bob, like Naomi Watts. Elegant, comfortable and easy to style before a formal event, while the curls add volume and glamour. The David Künzle salons say the longer version suits oval faces, and the shorter one sharper features or elongated faces where age shows more. With curls or waves, this is a very feminine and versatile style - but it requires you to know in advance which style and which length you want.

Halle Berry's bob. Timeless and adaptable: shorter at the nape, longer at the front. That way it lengthens the neck and multiplies volume, even with very fine hair. David Künzle advises stopping the length above the collarbone, with layers that distribute the volume and a slightly thinned edge - if the density of the hair allows it.

Sharon Stone's "bixie". A mix of bob and pixie, for women who don't dare go completely short. It works on both straight and curly hair. Hairdresser Noelia Jiménez explains that a bixie touches the jaw or is slightly longer at the front, and is structured in soft layers for volume, movement and lightness - especially with curly or wavy hair.

Milla Jovovich's tousled layers. A rocker note for those who don't want a "respectable" haircut. Juan Leal, stylist and education director at Pierino Cosmetics, says this cut is ideal for fine hair and for narrow, thin faces. Fran Galán of TBC Hair describes it as a seventies-inspired trend: messy layers, tousled texture and a very modern look - especially on slightly wavy hair.

What all four have in common is simple: none of them hides age behind a severe short cut; they all rely on movement. If your hairdresser still insists there's no choice after fifty - show her these four names.