What is the nail plate composed of?

The nail plate is primarily composed of hardened keratin, which is a type of protein that is also found in hair and the outer layer of skin. This keratin structure gives the nail its strength and durability, allowing it to protect the sensitive areas underneath, such as the nail bed. The keratin in the nail plate undergoes a hardening process that helps the nails maintain their shape and resist damage.

Soft tissue does not make up the nail plate; rather, it is found in the surrounding areas, such as the cuticle and skin around the nails. Liquid keratin is not relevant in this context, as the nail plate is solid and does not contain liquid forms of keratin. Bone is also not part of the nail structure; instead, it sits beneath the nail bed and serves a different function in supporting the overall structure of the finger. This understanding of the composition of the nail plate is crucial for cosmetologists to know, as it informs proper nail care and treatment practices.