Circulation plays an important role in promoting healthy nail growth, but all too often our stressed-out hands don't get what they need. To improve the blood flow to your fingers, combine a tablespoon of olive oil and half a tablespoon of talc. It makes a creamy mixture that you can rub into your nails and cuticles in just a couple of minutes. Wipe off the excess, give your nails a quick buff, and they're ready to grow.