In this bottle is a little miracle; and if you've never tried Mavala Scientifique, well... you should!
Mavala are world leaders in nail care and have a heritage spanning over 50 years, beginning with their best-selling Scientifique.
Scientifique comes in a tiny bottle, it is a green liquid that you paint the tinest amount onto just the very tips of your bare nails once or twice a week, so the bottle will last you forever. Anyway, the liquid soaks into your nails and leaves them as bare as before you applied it, so doesn't effect any nail polish you may want to apply afterwards.
Having used it for four months now, I can tell you this stuff is amazing, I have no idea how it works, just that it does. It's formula hardens the nail plate so that the nail can restore its normal growth. You will find pretty quickly that your nails will stop splitting, peeling and breaking at the tips. In fact they become very strong and more resistant to breaking when you catch or bash your nails against things by accident.
Scientifique is a superior product that far out performers other nail hardeners. I highly recommend it!
For something to paint those rock hard nails, Mavala has packaged it's 5ml nail polishes in individual angel wrapping especially for the festive season. I have the Rouge Rubis shade, which is a gorgeous red polish containing tiny flecks of glitter - Oh so Christmassy!