Brian Gaff wrote

Does it do any harm though?

Yep, plenty of stupids use that crap instead of what works.

"Graham." wrote in message
...
...when the Royal Pharmaceutical Society of Great Britain, protected
the gullible from quack products like this.
https://www.boots.com/ladycare-magnet-10077359

https://www.youtube.com/watch?v=JsFZcha3Bbo