Unless you've been living under a rock for the last few years, you've likely heard of a man called Bryan Johnson.
Mr Biohacker himself has spent millions of dollars to fend off the effects of aging.
Alongside help received from doctors and health experts, Johnson, who is biologically 46, has taken up treatments to achieve the body of an 18-year-old.
His ambitious plan to make him look a lot younger involves a strict diet, exercise and a meticulous sleep routine.
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Johnson also embarks on a number of different medical procedures ranging from regular blood tests and infusing himself with a litre of his son’s plasma to 'painful' shock therapy on his penis. Yep, I know.
Now, the biohacker has turned his attention to his oral health, claiming there is a way to go from rotting teeth to a white and bright smile.
Speaking in a recent YouTube video, Johnson said: "I used to have terrible oral health. My dentist now reports 'you have the gums of a healthy teenager'.
"By following this routine and sticking to a Blueprint diet, my mouth is the healthiest it's ever been in my adult life."
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He added: "My teeth were literally rotting I was losing attachment on my gums my teeth were not in a good place I had a lot of sugar in my diet - the situation was not good."
According to Johnson, there are four baseline level measurements required to your assess oral hygiene before the extensive regime can commence.
The biohacker first advises to look at the pocket depth of teeth, he explained: "You want to see how deep that is. If it's 1 to 3mm you're in good shape, if it's four to five it needs some work."
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Next Johnson says you want to check the firmness of the tooth in the gum, and then monitoring the plaque index - the hardened plaque around the tooth.
And the fourth check you want to complete is how easy or hard it is for your gums to bleed.
Bryan Johnson's routine for the 'healthiest' teeth
The biohacker's eight-minute dental routine begins with a waterpik.
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"It's a high pressure stream of water that comes out like a hose and you run it along the gum line around your entire teeth," he explained.
Next up is flossing and then Johnson uses an electric toothbrush to actually brush his teeth.
"You may prefer a manual and that's just fine - find the one that's right for you," he encouraged.
A tongue scraper then follows. Johnson said: "The tongue gets kind of dirty just like the teeth do and it needs a cleaning - just like the teeth do."
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And to round off the rather long routine, Johnson uses xylitol mouthwash and a bruxism device to stop his teeth from grinding.
It's probably best to consult with your own dentist before trying out this routine for yourself.
Topics: Health, Bryan Johnson
Callum Jones