Hi Guys for Biotin 5 or 10 Ml I have found two good providers maybe this will be useful: http://www.amazon.com/Mericon-Meribin-Biotin-Supplement-OTC/dp/B000MK2VOQ/ http://www.freedavitamins.com/index.php?p=catalog&mode=search&search_in=name&search_str=biotin&x=90&y=5