This page on herbal treatments for amnesia made me laugh out loud:
Amnesia is usually caused by some traumatic event, like an accident or a blow to the head. It may also be caused by taking certain sedatives. Some cases are caused by disease like Alzheimer’s, which directly affects the brain, or because of poor brain circulation. A poor memory may also be exacerbated by a lack of stimulation. Some cases of amnesia are also psychologically based, caused by neurosis or anxiety…
Herbal Treatments
Rosemary ‚Äì taking rosemary tea may help improve the memory as well as support the entire body’s systems. This tea can be taken as needed for forgetfulness…
Walnut ‚Äì this proven memory booster is a good natural remedy for loss of memory. Eating walnuts on a regular basis will help recover memories…
Black pepper ‚Äì mix five finely ground black pepper seeds with a teaspoon of honey and take it twice per day to help the memory and to improve amnesia…
Rosemary, Walnut and Black Pepper? There’s probably some vegan restaurant in San Francisco that’s cured hundreds by now.
Link to herbal cures for amnesia page.
Mind Hacks 
At least it’s tasty.
Gingko biloba is also supposed to be a good memory booster. While I’d be the first person to support a medical solution to a medical issue (amnesia), I don’t immediately “laugh out loud” at herbal/holistic approaches.
Having said that, the fact that the people marketing such things want to call them “cures” rather than “treatments” bothers me alot. While I think there’s no harm in soomeone trying herbal supplements for a while to see if they work for them, I don’t think people should expect to be completely “cured”, and I don’t think the supplement industry should be able to market their products that way. To put it a different way, if you market something as a “cure”, and Patient X isn’t cured, in today’s overly litigious society it would be very easy for Patient X or his family to go after the supplement manufacturer because the “cure” didn’t work. False advertising, deceptive trade practices, whatever. Lots of ways that marketing something as a “cure”, when it isn’t, can go bad.
Does tobacco count as a herb? Because that definitely works.
Actually, I think you are missing the whole herbs/herbal medicine thing. Herbal medicine relies on the strength of herbs to do its work, so your comment about “laughing out loud” at the remedies given on the page you linked to just shows that you don’t understand at all.
That’s not really a criticism of you, because 90% of the population probably think the same – that, for example, eating a few walnuts will give you a full dose of whatever the walnuts contain. The fact is, herbal medicine is very potent and potentially very dangerous too, if misused.
So my comment would be, maybe a little more research may be in order before any more laughing?