A male model has left people stunned after he revealed his dramatic jaw transformation.
Luca Marchesi from Milan calls himself the "CEO of Jawline", and it's not very hard to see why.
After two years of "training", Luca shared the secret to his sculpted jawline - but it's divided opinions.
The model, known as @lucamarchesi_lm on TikTok, shared the dramatic results after jaw training for two months in a video that has been viewed millions of times.
The video sees him chomping down on a little rubber device that is used to strengthen the facial muscles.
"DO U THINK IS TOO MUCH?" he captioned the clip, and many people - including doctors - agreed that it was.
Dr Martina Hodgson, a dentist and Invisalign doctor at The Dental Studio, told Metro : "Over-developed masseter muscles, whether unintentional through teeth clenching, grinding or deliberate, can cause problems such as migraines and TMJ or temporomandibular joint pain.
"These are the muscles that connect the jawbone to the cheekbone and help us to chew, so an over-development in this region is not advised."
The pain is treatable, Dr Martina added, but you'd need several shots of Botox to "relax the muscles and then reduce inflammation".
Since being posted, Luca's video has racked up thousands of comments from fellow TikTok users.
One said: "This hurts to watch wtf."
Another commented: "A little too much."
But a few people thought it was a filter and was stunned to discover it wasn't.
Whereas others said they liked the chiselled look, as one said: "Am I the only one who thought it's pretty cute?" and someone else commented: "Jawline sharper than my knife."
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