A line up of celebrities will take part in a "bold and unique experiment" on ITV called 100 Years Younger in 21 days.
The celebrity line up includes soap legend June Brown, actress Claire King, presenter Roy Walker, Eastenders stalwart Sid Owen, actress and presenter Sherrie Hewson, musician Shaun Ryder, TV personality Sandra Martin and astrologer Russell Grant.
The eight well-loved and well-worn celebrities are taking part in a bold and unique experiment, to find out if we really can stop the aging process and turn back time. We see if they can lose 100 years between them, without going under the knife.
Before embarking on their quest, the celebrities will be subjected to scientific testing to discover how well, or badly, they are aging, inside and out. Each one will then be told the biological age of their face, brain and body.
The group will then spend 21 days on the island of Sardinia, home to one of the oldest populations in the world which includes a blue zone.
They will be asked to commit to a strict diet and exercise routine bespoke for their individual needs, which will push them to their limits and be subjected to cutting edge, extreme, anti-aging treatments.
After 21 days of intensive rejuvenation, the celebrities are assessed once again, to discover if they have reached their combined goal of losing 100 years from their collective biological ages, both physically and mentally, inside and out.
ITV describe the show a an "unique, immersive series" that will show the celebrities out of their comfort zones, as they candidly reveal their personal health issues and the aspects of their appearance which most concern them.
100 Years Younger in 21 Days airs tonight at 9PM on Channel 4.
In tonight's fourth and final episode, this week the pressure is on as the well worn famous subjects do everything they can to shave some much needed years off their brain, body and face ages before the Professor reveals their final results,
Shaun gets his nose shrunk. Roy has an accident. Russell attempts to swim and gets sick. And two of the clinics rejuvenation experts believe the subjects won’t make the collective target of 100 Years Younger in 21 Days.