There is no general best solution for hair loss and different conditions require different approach, medication, product or treatment. For example if your hair loss is due to a medical condition such as acute infection you need to treat that condition and in most cases hairs lost during such illness regrow back when health gets back to normal. If you are suffering from Male Pattern Baldness then the underlining cause is always DHT, an anabolic hormone primarily responsible for hair loss. So the treatment in this case would be either use natural supplements such as Saw Palmetto or otherwise FDA approved drugs such as minoxidil or finastride to control DHT and thus prevent further hair loss and even regrowth is possible in some cases.

So i would suggest if you really think you are substantial hair loss then ideally have a medical checkup done which takes not much time and ensure the reason behind your hair loss. Once that is known you would be in a much better position to analyze what vitamin, or products or treatment you need to use. Otherwise you may end up treating something which does not even exist and may even further deter your condition due the side effects some of the treatments carry.

For more information i suggest you visit sections at http://www.hairfallguide.com/

It is also important to find out what is causing your hair loss:

To learn all about female hair loss and how to prevent it:
http://www.vzbotanicals.com/cbinto.html

I hope this helps. You’re hair shouldn’t be falling out that much.