Help, my nails are a mess! Rehydrate: To rejuvenate dried-out nails and lock in natural oils, dermatologist Bruce Katz recommends soaking your fingertips in a bowl of warm water and then, while fingernails are still slightly damp, applying a coat of Vaseline or thick lotion. You’ll get even more mileage out of your moisturizer if you apply it just before bedtime, rub it into your cuticles, and pull on cotton gloves to wear while you sleep.
