i am having problems finding a good hair vitamen(s)

i am looking at my bottle of A right now, and its 8,000 I.U. per capsule. nature made vitamin. so if 10,000 is over the limit...thats confusing due to the fact that the amount per pill is 8000 so if i take more than 1 per day, you`re saying its dangerous? my doctor told me to take one with each meal and i usually eat twice a day. but i think the only reason he told me that is b/c i have a hectic work schedule, and my normal meals consist of either fast food, or snacks...very nutrient lacking stuff. so since i dont eat right and nowhere near a balanced diet, is it safe to take that many???

thanks to both of you....i will have to stop by walmart and pick some of that up....i am taking vitimens for faster hair growth/ healthier hair...but why is too much A bad for you??? just wondering b/c ever since i started taking A, my nails have strengthened and are growing faster, and my hair seems to be growing faster too, and i have heard that with A, B and C, there have been no findings that they are bad for you in small or large dosages...so if they are bad for me, i would be interested in finding out why...thanks :)

Since I don`t know if you are using vitamins to correct a specific problem or just strengthen your hair, I will discuss vitamins and herbs in general and how they work to improve your hair. The B Vitamins play an important role in healthy hair growth and deficiencies have been linked to hair loss. It is recommended to take B vitamins in complex form, because the B`s work off each other in complimentary fashion, although taking extra Biotin is a good idea. Biotin can easily be obtained naturally from the foods you eat --- add bulghur wheat, brown rice, brewer`s yeast, lentils, green peas, soybeans, sunflower seeds and walnuts to your diet...it will improve the condition of your hair. Vitamin C is a wonderful antioxidant and helps improve circulation to the scalp. Vitamin E, another good antioxidant, increases oxygen absorption and improves circulation to the scalp. Zinc enhances immune function and stimulates hair growth. Copper works with Zinc in aiding the growth and strengthening of hair. Kelp supplies an abundance of natural minerals essential for hair growth. L-Cysteine and L-Methionine improve quality, texture and growth of hair and help prevent hair from falling out. Now let`s talk about HERBS ... Bilberry contains fatty acids, and flavonoids -- among some other compounds -- helpful in correcting hairloss due to stress or damage. Horsetail contains calcium, copper, fatty acids, PABA, Pantothenic acid, silica, sodium, starch, zinc .. all very good for strenghtening hair. Maiden Hair Tree is more often referred to as Ginkgo Biloba, which is well known for its ability to improve circulation. Hope this is useful to you.