adviceman49 answered Monday March 25 2013, 7:50 am: I suggest you read this article in Wikipedia. As the article points out Biotin is a natural substance produced in the body that is rarely deficient. The science behind Biotin as a hair growth supplement is also weak.
As a vitamin supplement if probably will not harm you though you should check with your doctor before taking any dietary supplements or vitamins. In general any supplements you take the body can't use will just come out in your urine.
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