Only a few can see the  two faces in this new optical illusion

THIS optical illusion is so challenging that only a tiny fragment of the population can see both faces contained in the image.

THIS optical illusion is so challenging that only a tiny fragment of the population can see both faces contained in the image.

Presenter Dean Jackson has a background in biology, but on TikTok, he entertains his 594k followers with brainteasers, puzzles, and optical illusions.

His most recent video included a challenging illusion, which shows a sad-looking man upfront and also contains a different picture.

"Right now, you're seeing the face of a man who's looking a little bit sad," Jackson explained.

"It's said that just under one percent of people can also see an angry face as well."

He provided a grace period of a few seconds to let viewers try and see the angry man on their own.

"If you can't see the angry face, put a finger on the screen just there," Jackson continued. A red arrow flashed on the screen.

If covering the top corner of the face didn't work, Jackson had specific instructions for viewers.