you can find your answer here in
http://teensandhealth.blogspot.com/2009/02/prevention-of-hair-loss.html

There are obviously a lot of reasons for losing hair, but one of the reasons in men and women hair loss is the lack of certain nutrients. Incidental reports have shown that our modern stressful lifestyle and a diet high in saturated fat contributes greatly to this generation’s problems on losing hair.

This is why if you want to grow your hair back, you need to look from within and find some effective vitamins for hair loss to counteract the problem. So which vitamins for hair loss have been proven to help greatly in regrowing hair? Read more and find out.

Biotin
Biotin is also called Vitamin B7. A Biotin deficiency is a major nutritional factor why both men and women lose hair. It promotes the growth of new hair and strengthens it as well. You must remember that biotin cannot be easily absorbed by the skin or scalp. This is why you can benefit most from it by taking it as a supplement rather than by using a shampoo or cream with biotin.

Magnesium
The lack of magnesium in the body is another reason why hair fall out. For this reason, it is important that you have enough magnesium. Some food high in magnesium content include banana, artichokes, almonds and spinach.

Zinc
Studies have shown that zinc deficiency can weaken hair. Having zinc as an ingredient of your hair vitamins therefore strengthens it and lessens hair breakage and falling out.

The three hair loss vitamins mentioned above are essential components in an effective dietary supplement for your hair. Take them regularly and be patient. Hair regrowth doesn’t happen overnight.
for more info

anyway as we know – hair loss can be caused by many different reasons! Find out the actual cause of hair loss! There are many causes of loss of hair such as stress, poor nutrition ,medications, thyroid dysfunctions, illness, fungal infections ,hormonal problems, to mention a few.

year ago my husband suffered very much from hair loss too and he started trying everything you can imagine to stop his hair loss. the things that really worked for him was:

1) Vitamin A – an anti-oxidant which promotes healthy production of sebum in the scalp;

2) Vitamin E stimulates circulation. Good blood circulation in the scalp is important in keeping hair follicles productive. The ‘B’ vitamins contribute to melanin, which gives hair its healthy color and also stimulates blood circulation;

3) massage is also beneficial. Massage stimulates circulation. As already noted, good circulation in the scalp keeps hair follicles active. Experts suggest a few minutes of daily head massage by hand. Circulation through massage may be improved by using a few drops of lavender or bay essential oil in an almond or sesame oil base with massage;

4) Try rubbing your scalp with garlic juice, Onion Juice or Ginger Juice(you can either of one out of three, Do not mix any of two or three);

5) also he used herbal treatment – TrichoZed
It is a good product that helps prevent hair loss and it is an FDA approved product. I think it is very important!

It worked and still works for him!

I do not know if any pharmacies carry TrichoZed but I do know that you should purchase it directly from the manufacturer and read more about the product here http://www.trichozed.info/why.php

It enhances hair growth by blocking DHT (Dihydrotestostrone) – a major cause of hair loss!

good luck!

not only my and my husband`s own personal experience

http://www.trichozed.info