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 ...
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5 reasons your nails grow fast

Genetics, age, and overall health are some of the reasons nails grow fast. Nails are composed of a tough protein called “keratin” that also serves as protection. The base, which is the nail matrix, ...