Biotin for Hair Growth?

I have heard Biotin can aid in hair growth. Is this true? If so what daily dosage do you recommend?

I do not believe that biotin can aid hair growth, but I’m sure I’ll get plenty of emails or comments from people disagreeing with me. There’s a lot of websites out there that go on and on about the virtues of taking biotin for hair growth, but I’ve yet to see a credible site that isn’t pushing supplements for sale talk up those virtues.