Sally Hansen Moisture Rehab Overnight Nail Serum, $16.95.

Pop this serum onto your nails and hop into bed. Wake up with ace nails. Well, maybe not quite but in a week or so you totally will. This high-tech serum contains moisture and nutrient rich extracts for intense nail and cuticle restoration. The lightweight formula features a blend of black orchid, acai, algae actives and humectants to help hydrate and rejuvenate dry or weak nails. Utterly, utterly good!