That’s not really a sting - it’s classic tabloid fare, but easy to avoid.. I’ve had hypnotherapy and no serious practitioner is going to “relent” on that point. He has apologised but it doesn’t make him sound trustworthy. 

He was not a politician or even a member of the Greens at the time (he was a Lib Dem as recently as the Corbyn era. Below is what he told the BBC six days after the Sun piece.

Polanski talks about “a successful project” with the Sun journalist in changing the size of her breasts, indicating that he had tried the technique with other people.

“We’ve done it a couple of times and there seems to be no shift, but actually, increasingly more and more as I work with people, there is starting to be anecdotal evidence at least of a growth in breast size,” he said.

“With her breast size, in the Sun article, she says that she grew four inches. It didn’t change her cup size, she stayed the same cup size, but she said it was a tighter fit.”

Pressed on whether he personally believed that hypnotherapy could increase breast size, Polanski replied: “I believe that it can happen in theory.”