menopause symptoms are very well known for fluctuating and i would suggest that any improvement experienced by using a magnet is not down to the magnet but down the natural fluctuation of the symptoms - symptoms flare up, lady uses magnet, symptoms calm down, nothing to do with magnet as it would have happened anyway. same with most other 'wonder cures'.
sorry if i sound dismissive but i learned through trial and error that these things - magnets and most, if not all, other 'cures - don't work and are not based on proper research.
however, if anyone wants to waste £20 on something like this, then who am i to argue? alternatively go and buy £20 worth of dairy milk and i guarantee you'll feel better :)