This male model’s ripped torso and boyish looks are defying the ageing process … but can you guess how old he really is?

ChuanDo Tan, from Singapore, shows off his youthful face and ripped body in numerous pictures on his Instagram page.

But while he looks like a very fit man in his twenties, The Sun reports that ChuanDo is actually 50 years old.

The model-turned-photographer, known as CD to his pals, has been going viral since appearing on a Chinese news website recently.

He now has 180,000 followers on Instagram — and many just can’t believe he’s reached the big 5-0.

On one post a follower wrote: “Are you sure you are 50 years old?”

Another wrote: “Are you a vampire?”

One smitten fan added: “This hot af is 50 years.”

Others just appreciate his beauty, with one writing “My god … you are so lovely.”

While he clearly works out a lot, ChuanDO is yet to reveal how he manages to keep his boyish looks.

Although he still models, ChuanDo is a successful photographer and often snaps celebrities for magazine covers.

He also shot the cover for Janet Jackson’s 2008 album ‘Discipline’.

If only he could bottle the secret to his eternal youth, he’d no doubt make a fortune.

A 70-year-old gran recently stunned the internet by showing off an amazing bikini body that women half her age would envy.

This article originally appeared on The Sun.