So many misunderstandings around this topic and Dancing Girls initial thoughts to be wary are right I think.
Natural medicine isn't just an assumption that the ingredients are natural, or in some way harmless. Using 'natural' medicine is as much about the approach to health being holistic. The approach to treat the whole body, for instance a naturopath might treat the liver or gut with high estrogen to progesterone ratio so that estrogen is flushed from the body more readily. Accupuncture might stimulate the pituitary gland to aid balance.
Bearing this in mind it makes even more sense to stop expecting an over the counter herbal preparation to cure all ills and seeking a professional might be more effective. But it will never be as direct as HRT which is, in simple terms the addition of hormones. The two approaches are completely different.
One thing that 'natural' medicine adheres too is that minimal dose should be used to stimulate the body to achieve balance, I've read a lot that HRT should be used this way too , minimal dose to achieve results.
Natural medicine for menopause is, I believe quite complicated and if an over the counter remedy doesn't work, then a professional should be sort for stronger and more personalised treatment.
Both approaches are valid and as time goes on, integration of the best of 'natural' and pharmaceutical treatment will no doubt increase. No fear needed in my opinion, just education on the uses and potential dangers of any medicine.