Fortunately modern medicine has come long way since 1500 BC when the then voguish treatment for hair loss involved daubing your scalp with a paste of 'Toe of Dog' and 'Hoof of Ass'. Still in Egypt (but a few centuries later) Cleopatra tried in vane to put a stop to Julius Caesar's retreating hairline with a mixture of horses' teeth and charred mice. Meanwhile on the other side of the Mediterranean Hippocrates (who would soon become universally acknowledged as 'The Father of Medicine') met with similarly disappointing results after applying pigeons' droppings to patients' pates.
While the above represent little more than historical curiosities (and don't make the mistake of thinking that the list stops there - you can add in anything from the application of hedgehog urine and deer marrow to the quaintly British custom of having your head licked by a cow) the point is that people have been searching for a hair loss cure for centuries, a number of which have successfully weathered the test of time.
This cash of historical knowledge forms the basis of many of today's herbal hair loss remedies, which offer welcome alternative and supplemental methods of treatment. The FDA has yet to give any of these natural approaches the thumbs up, however this doesn't necessarily mean that they aren't effective - often it's simply a question of time and money.
Many natural remedies have their roots (if you'll pardon the pun) in Chinese medicine and have survived the centuries through word of mouth - presumably because for a significant number of people who used them they did work. In fact it's difficult to find a dermatologist who will totally shun the idea of adopting a herbal remedy in tandem with one of the more commercially established pharmaceutical approaches.
It's important to take the claims of any hair loss product with a health pinch of salt, and herbal remedies are no exception. Read in between the lines and remember that much of the blurb is likely to be based on anecdotal, rather than scientific, evidence.