Vitamins for the Hair, by Puritan's Pride. It has pretty much everything you need in it. I took this for over a year. They also have Mega Vitamins for the Hair.
Keep in mind that silica is often listed as an inert ingredient in many supplements. So if you take multiple pills you may end up getting closer to the toxicity point than you wanted. It's smart to narrow everything down to ONE pill. Easier to stay on track with taking your vits when it's streamlined as well.