BIOTIN:
I also take Biotin for my skin, hair and nails as an extra B supplement. I use NOW Biotin purchased at my local health food store. This is what it looks like. It's in a very small, easily swallowed capsule. I started taking biotin 6 months before I had my lap band surgery and I know it's helped.
NOW Foods - Biotin 1000 mcg - 100 Caps
You can buy this in a local health food store, GNC or online. Now brand is a good brand. and it's not real expensive either.