Oscar-winning actor Anne Hathaway has one of the most age-defying faces in Hollywood.

Yet cosmetic surgery experts have suggested one characteristic aspect of her flawless look can be explained by a simple tweakment.

The 42-year-old became to talk of social media last week after she appeared at New York fashion week looking especially youthful.

It was the latest in a series of stunning appearances that have left some fans saying The Devil Wears Prada actor now looks younger than she did in her 20s.

But according to aesthetician Ashley Aldridge, her latest public outing exposed a subtle sign that she’d undergone jaw filler to maintain a ‘snatched’ look.

In an Instagram clip of The Idea Of You star that has since been removed, Ms Aldridge told viewers to ‘look closely’ as the actor turned her head to speak.

Ms Aldridge, who works at the Boyd Beauty facial plastic surgery in Michigan, wrote ‘look closely and you can see her jawline filler as she’s speaking’.

Fillers are substances that are injected under the skin as a cosmetic treatment to restore volume lost due to age, smooth wrinkles or enhance facial features like the jawline.

Described as a ‘game-changer’ for male and female patients alike, jawline fillers cost about £450.

Anne Hathaway has faced fresh speculation that she’s had work done on her face with an expert claiming a subtle clue could indicate the type of procedure. Pictured in New York at the Ralph Lauren Collection Fall 2025 event on April 17

Ms Aldridge told followers to pay close attention to Hathaway’s jaw as she speaks

However, Ms Aldridge caveated in the clip — which has been liked almost 20,000 times — that what she identified as filler could also just be the natural shape of Hathaway’s face.

‘It could also just be her natural anatomy. But, if it is filler, there are ways to make jawline filler look more natural and seamless,’ she said.

Ms Aldridge added: ‘She is not my patient and I do not know whether or not she has had any cosmetic or surgical procedures.

Regardless of if she had work done or not, the cosmetic procedure professional said Hathaway looked amazing.

‘I’ll have what she’s having, Anne Hathaway is absolutely stunning,’ she wrote.

Social media users agreed.

One wrote: ‘She’s fabulous and looks better and better! Give me some too please.’

Hathaway had a noticeably smooth complexion at the event — even compared to just six months ago. Here he is pictured at ‘The Apprentice’ premiere in New York in October

Another added: ‘She was beautiful before and she’s absolutely gorgeous now.’

Hathaway’s noticeably smooth complexion at the event — even compared to just six months ago — has sparked frenzied speculation she may have had work done.

Even when letting out a big laugh, The Princess Diaries star’s forehead did not reveal even one wrinkle or crinkle.

Hathaway’s apparent continued de-ageing also left some fans joking: ‘Annie’s on track to be a baby by 2045.’

The actress has faced speculation she’s had work done before.

In 2023, plastic surgeon Dr Gary Motykie told DailyMail.com that he had ‘no doubt she had surgery on her nose’ as it appears the former child star refined her tip with a finesse rhinoplasty.

It was the latest in a series of stunning appearances by Hathaway that have left some fans saying The Devil Wears Prada actress now looks younger than she did in her 20s

‘You see it go from a slightly more plunging bulbous tip with a wide bridge to having a much more defined contour and thinner bridge and thinner tip and more tip projection. That’s the leading sign of having a rhinoplasty,’ he speculated.

‘We also see that natural sign of thinning and baby fat going away on her face, but it does appear to be more maintained. So, again, I am suspicious of things like fillers, Botox, maintenance with micro-needling and skin tightening, things to just maintain the skin.

‘I also noticed her jawline is a bit narrower, again that could be the normal loss of body fat or it could be some slight contouring to the jawline to bring in that lower face with things like Botox to narrow that lower part of the face.’

However, the actress herself has shown dedication to her skincare regime.

Only last month, Hathaway shared a make-up free snap with Hollywood bestie Jessica Chastain.

The friends, who starred alongside each other in 2024 thriller Mothers’ Instinct, both sported sheet face masks as they kept their skin hydrated while relaxing on a plane.

Hathaway’s long-term facialist, the renowned Su-Man, has also previously given an insight into the star’s strict daily skincare routine.

Su-Man told Net-a-Porter that Anne massages her face, puts on a face mask and applies SPF 30 every day.

Even when The Idea of You producer-star let out a big laugh, her forehead did not reveal even one wrinkle or crinkle

The star herself has also spoken in the past about how she has always prioritised protecting her skin from sun damage, with her mother encouraging her to wear sunscreen daily from a young age.

‘I even carry an umbrella if I walk in the sunshine and use spray tan if I need to look as if I’ve been sunbathing,’ she previously told the Sun in 2012.

Dr Asha Chhaya, an aesthetic doctor and medical lead at WY Skin Clinic, also told MailOnline some of the ways Hathaway likely maintains her flawless features.

‘She likely follows a consistent skincare routine, with sun protection as a top priority, using SPF daily,’ she shared in 2024.

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‘Her regimen probably includes gentle cleansing, moisturising, and regular face masks to keep her skin hydrated and radiant.

‘It’s also likely that she incorporates antioxidant serums to shield her skin from environmental damage, and no anti-ageing routine would be complete without retinol – known for its ability to boost collagen production and reduce the appearance of fine lines.’

‘It’s possible she benefits from regular facials and subtle cosmetic enhancements to further bring out her natural beauty.’

Another factor that might be helping is the fact she gave up alcohol back in 2019.

Alcohol dehydrates the skin and disrupts sleep, both factors that can lead to a dull, tired complexion.

Back in 2008, Hathaway denied ever going under the knife but confessed: ‘When I was growing up, I wanted a nose job, because I didn’t think my nose was good.’

‘Your face needs to have character if you’re going to be an actor, or you’re just kind of a face,’ she added.