William's new cut

'A buzz cut is often seen as a low-maintenance, quick-fix kind of haircut, but in reality it takes a lot of work to keep it looking sharp and fresh.'

Jason, who posts about his work on Instagram, added that buzzcuts ideally need to be trimmed every week or risk looking 'out of control'. 

For those looking to copy William's look, he advised: 'Book in at a salon for the initial buzz, to find a length that suits, but after that, this is a look that you can easily keep on top of at home.' 

Lloyd Hughes, Creative Director and Lead Educator at men’s grooming brand men-ü, agreed: 'I'd recommend visiting a stylist one every couple of weeks to ensure all is kept in order and the style doesn’t start to over-grow. It is key to keep a masculine look to the cut, with the back and sides cut shorter than the hair on top where possible. Ideally, a ‘number 2’, on top, and a ‘1.5’ on the sides. This will help to maintain the appearance of a styled haircut, rather than an all over buzz cut.' 

Ross Charles, Owner of Ross Charles Hairdressing, said William should consider investing in some at-home grooming products if he wants to keep the look.

He said: 'The precision with this style must also be considered as it looks best when it is clean and exact, therefore it is usually recommended to have a set of clippers at home to keep the sideburns, over the ear and nape of the neck neat between appointments.'

The third-in-line to the throne, whose hairline has been receding for several years, decided to brave the shave ahead of his visit to the Evelina London Children's Hospital on Thursday last week.

Prince Harry has been known to tease his older brother about losing his locks; while chatting to a Second World War veteran in Barbados several years ago, Harry remarked that William 'was already bald aged 12'.   

This article was first published on dailymail.co.uk and is reproduced here with permission.