For near-dental quality ‘water-flossing’ I would say the Water Flosser (from Waterpik) is as good as you can get in an ‘at-home’ model. While there are many things about it that could be better (the plastic has a cheap feeling to it, the product itself is very light-weight) the improvements would likely raise the cost of this product by hundreds of dollars. For the price, this is as good as it gets.

I originally purchased this product from WalMart for about $10, and to my surprise it actually worked. Within about two weeks of taking this supplement I noticed my nails were significantly harder (I've always had thin, fragile nails), and my previously fine, dull hair was noticeably shinier and more manageable. I've tried costlier hair/nails supplements such as Irwin Naturals, and didn't get nearly as significant a result as using this much more affordable supplement.