A member asked:

How much should i take the biotin 500mg?

A doctor has provided 1 answer

Too much/toxic?: Daily requirement of biotin is 30 micrograms and is readily available in a well balanced diet. High doses as much as 2to10 mgm has been recommended by some for hair loss and nail growth 500mgm is very high dose and can be toxic.

Answered 11/27/2013

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