The name of the skin covering the tips of fingers and toes is called the nail. Nails are made of a tough protective protein called keratin, which also forms the structure of hair and the outer layer of skin. The nail consists of several parts, including the nail plate, nail bed, cuticle, and lunula. Nails serve various purposes, including protecting the delicate tissues at the fingertips, enhancing sensations in the fingertips, and aiding in gripping small objects. Healthy nails can indicate overall health, whereas changes in their color or texture may signal health issues requiring attention.