well..umm i have tried it for a week and yea it works but doesn't grow that long i would recommend hard as nails from sally Hansen
When the iron in a nail combines with oxygen it forms iron oxide. We call this rust.
Yes, as long as the product contains water, as most do.
Yes. As long as you don't cut them or bite them. It takes awhile though; without anything to help out, i.e. product of some sorts or press-ons.
btw duhh the product explodes