Cherie, star of the TV beauty spa

CHERIE Blair is so fond of the unusual beauty treatments at Champneys spa that she is said to make the 70-mile round trip from her home in London’s Connaught Square once a week.

And ITV viewers could soon be entertained by a glimpse of former PM Tony Blair’s wife (pictured) plunging into the ice chamber, or being blasted with liquid nitrogen, as the Hertfordshire centre is to be the subject of a fly-on-the-wall documentary in June.

Stephen Purdew, owner of the spa, confirms that some prominent figures will appear on the show, but refuses to disclose if Cherie is among them.

‘A few well-known faces who use our spa will be in the documentary,’ he boasts. ‘It is about improving what we do at our iconic health resort. We are a proper health farm, with nutritionists and dieticians, and people will be able to see what goes on.’

Champneys hit the headlines in 2011 when it was disclosed that Metropolitan Police chief Sir Paul Stephenson had accepted a complimentary 20- night stay worth £ 12,000. He resigned shortly afterwards.

Cherie is such a devotee of Kriotherapy sessions — in which she endures minus 135C temperatures — that she has reportedly been known to reassure first-timers with a sing-song of ‘Always look on the bright side of life’ while stripping to her bikini in the chamber.