Trying to add some length to my hair and I was thinking about taking more Biotin. I take GNC Ultra Nourishhair and Women's Ultra Mega. Taking these I consume 1280 mcg of Biotin a day. GNC sells a 2500mcg Biotin supplement. I was thinking about adding this to what I take already. Just want to make sure that I am not overdoing it. /images/graemlins/wink.gif