Nail Hardener...Does It Work?

I tried Revlon Calcium Gel Nail Hardener 10 days ago when I was feeling like my nails were particularly pathetic. The package says '60% thicker in just 4 days', and although I wasn't quite sure how they measured the %60, any improvement sounded good to me. It went on easily (as anything clear does) and looked shiny, which I liked. Fast forward 4 days, and my nails were notably thicker and stronger. BUT, checking in today (6 more days) and it chipped off like regular polish does. Sure, it isn't as bad as colored polish would have looked, but it looked like clear nail polish does when the ends all wear away and there is a circle of shiny in the middle of your nail. You need to take it off with nail polish remover - not that big of a deal - but not what I was expecting. So...as long as you are thinking you will need to take it off, it really did make stronger nails. I'm definitely up for trying it again when I'm feeling a little brittle...