'I've been a hairstylist for nearly 30 years - a long hair mistake is ageing you faster but it's very simple to fix'

Justin said on his YouTube channel: "I've been a licensed hairstylist since 1995 and I've run my own salon since 2000."

The expert shared a mistake he has learned from "decades behind the chair", reassuring women that it's "very simple to fix and makes a huge impact".

The expert's tip is designed to help women feel their "absolute best" and most confident at whatever age they are - not suddenly look 25.

Justin claimed that growing your hair long without shaping it for the length can be a "mistake that ages you faster".

He said: "There's been a huge shift into longer hair. I believe in many cases this was a result of lockdown and people kind of being forced into getting extra length.

"The problem is that these situations weren't born from a desire to grow your hair into a certain longer shape. So, therefore, in many cases it wasn't a goal - it was just extra length.

"The problem here is that this results in having length but not necessarily having a good shape."

According to the expert, if you want to sport long hair, shaping is essential. This can be done through layering - "in the back or front or both" - or bangs.

Having long, one-length hair can have the unintentionally negative effect of dragging the face down. On the other hand, shaping around the face will have a lifting effect.

Justin explained that shaping will ensure that "the volume is where it needs to be to help accentuate the things about your face shape you want to accentuate, helping you look more youthful".

In another video, Justin said: "One-length hair can be beautiful, but at the end of the day, it just doesn't have the ability to accentuate things about our face in the way that a free-flowing dress doesn't have the ability to accentuate someone's frame."

Other hair experts second this. Luxy Hair Extensions reads: "Layers are magical. They give your hair life. And bounce. And a spring in its step.

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"All-one-length hair, on the other hand, can be heavy and lifeless, making your face look longer and older than it actually is."

For middle-aged women in search of an anti-ageing makeover, ladies over 50 have been urged to try a haircut that can make them feel decades younger.

Justin Hickox also shared a tip for ladies sporting silver strands, telling women with grey hair how they can take 20 years off their appearance.