The natural nail, also known as ONYX is the hard protective plate composed mainly of keratin, the same fibrous protein found in skin and hair. The natural nail is located at the end of the finger or toe. It is an appendage of the skin and part of the integumentary system.
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The natural nail, also known as ONYX is the hard protective plate composed mainly of keratin, the same fibrous protein found in skin and hair. The natural nail is located at the end of the finger or toe. It is an appendage of the skin and part of the integumentary system.