It’s often said that once you reach your 50s, it’s time to commit to the ‘big chop’. While there are no hard-and-fast rules when it comes to beauty, there’s no denying the flattering effect of a well-cut bob.

Top hairstylists have long understood the power of a great bob. It’s no coincidence that more and more celebrities over 50 are opting for shorter styles. Take Helen Mirren, or Sophie, Duchess of Edinburgh, who prove exactly how the right cut can make fine tresses appear fuller, and can even create a more lifted, youthful-looking finish.

Naturally, we’ve been keeping tabs. From red carpets to royal walkabouts, some of our favourite famous faces have been serving up all the bob inspiration we could need. Here, we’ve rounded up the transformations that prove just how a shorter cut can instantly take years off hair over 50.

Sophie, Duchess of Edinburgh

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The bob received the royal seal of approval this summer when Sophie Duchess of Edinburgh joined the lineup. The style didn’t just take off a few inches, but it chopped years off her look, too.

Sophie’s bouncy, rounded bob falls neatly to chin length — a style award-winning hairdresser Marc Trinder says is particularly flattering in midlife. ‘I often recommend a chin-length bob for my mature clients – it is incredibly youthful and so often I hear them say “It’s taken years off me” once they’ve seen the end result. I don’t think I have ever cut a bob like this and had a client who didn’t love it!’

Helen Mirren

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Helen Mirren’s hair has certainly been on a journey over the past few years. From long silver locks to a classic bob, she’s now embracing a bixie, and it’s her most flattering style yet.

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If the terminology is unfamiliar, don’t worry, it’s actually quite simple. As celebrity hairdresser Gustav Fouche explains, ‘A “bixie” is essentially a hybrid between a bob and a pixie cut. It keeps a little bit of length through the back, like a bob, but has the lightness and playfulness of a pixie.’

The before-and-after transformation speaks for itself. The shorter style, with its soft angles and face-framing layers, beautifully highlights Helen’s cheekbones and creates a more lifted look, making her appear years younger.

Pamela Anderson

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If there’s one woman who understands the versatility of a bob, it’s Pamela Anderson. The actress debuted the chop in May last year and, since then, she’s worn it in more ways than we can count.

From soft, brushed-out curls to beachy texture and tousled, choppy layers, she’s done it all. But one style she always seems to return to is old Hollywood glamour – think a bob styled into swooping, vintage, silver-screen curls, à la Grace Kelly. It’s a look that delivers plenty of volume without requiring a lot of hair to achieve it. We can see why she loves it so much.

Hannah Waddingham

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We’d argue Hannah Waddingham’s bob has become iconic. So much so, it’s hard to remember a time when her locks weren’t cropped. Take a look at the before and after, and it’s easy to see why the bob has become such a signature part of Hannah’s look.

Over the years, she’s stayed true to her clever side parting, which helps boost volume at the roots. But with the lengths cut significantly shorter, her face feels more framed, giving her an overall softer, more youthful finish.

Halle Berry

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If you happen to be blessed with thicker locks, let Halle Berry’s transformation be your sign that short hair is an excellent choice.

We’d bet Halle would look incredible whatever she did with her hair, but there’s no denying her curly bob is particularly flattering. Cut to the jaw, the shorter length draws the eye to her cheekbones, creating an instant lifting effect. Beyond the facelifting magic, the cut also beautifully showcases her natural curls and the honey highlights woven throughout.

Demi Moore

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By now, Demi Moore has become synonymous with her long, dark tresses. But, at a recent appearance at New York Fashion Week, Demi ditched the waist-skimming locks for her shortest style for years: a sleek, jaw-length bob that's every bit as polished as it is impossibly glossy. (Demi, share your secrets, please!)

This isn’t Demi’s first flirtation with the bob this year. You might remember her dramatic Hollywood bob at the Cannes Film Festival. She continues to switch between long, mermaid waves and this chic, shorter cut, and we can see exactly why she keeps coming back to it.

As Fabian Lliguin, co-founder and hair expert at Rahua, explains, ‘Demi’s bob brings the eye towards the face and jawline, which can feel very fresh and modern, while the clean shape gives the hair a sense of strength and density.’

Penélope Cruz

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Penélope Cruz is proof that long locks can look incredible over 50, but her new bob makes an equally compelling case for going shorter. The actress recently traded her long waves for a precision-cut bob.

Cut neatly to one length, the style skims her shoulders and beautifully frames her face. The addition of a fringe only enhances the look. It might just be one of the most flattering combinations around — after all, we know a bob can create the illusion of lift, while a fringe is known to help soften the appearance of fine lines.

Andrea McLean

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Andrea McLean knows exactly how to give us hair envy. Her dark, glossy locks already looked incredible, but trimmed to a shorter length, they suddenly appear bouncier and fuller than ever.

She also went for a jaw-kissing bob. With the ends curled in, she creates a beautiful rounded shape — and it’s a clever trick the pros swear by. As celebrity hairstylist Jason Collier explains, ‘Whenever we talk about hair having an “anti-ageing” effect, it’s really about creating softness, movement and light around the face. A very blunt or severe finish can sometimes emphasise angles, whereas curved ends, like this, create a softer transition around the jawline.’

Susanna Reid

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Susanna Reid’s bob transformation might not be dramatic, but it’s certainly effective. It just goes to show that even a subtle trim can level up your beauty game.

With just a little length removed, the presenter’s hair instantly appears more voluminous and full of healthy bounce. We especially love the softly flicked ends, which add movement and polish.

Julianne Moore

bob transformation over 50
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We can’t get enough of Julianne Moore’s precision-cut bob. She traded her long, copper lengths for a sleek, sharp style that skims her collarbones, giving her hair beautiful shape and plenty of swish.

There’s another major benefit to this style, too. As top hairstylist Tom Smith explains, ‘This cut instantly increases the appearance of thickness and density in the hair.’ A welcome bonus at any age, but particularly over 50.