Fingernails grow 3.47 millimeters a month; toenails grow 1.62 millimeters a month. Taking biotin supplements may strengthen nails and promote their growth. Avoid using nail cosmetics regularly, as ...
When nails split, peel or lose their shine, it can feel like just another beauty frustration. But brittle nails aren't only about looks-they're a reflection of how nails age and respond to daily ...