Question

What substance are nails made of?

Answer 1

They are made of Keratin, which is a protein of dead cells. It is also the main protein of hair. You could in fact say that nails are the upgraded version of hair. When you cut your nails and hair, it does not hurt because they are dead'. The fathers on birds and the hooves on horses are also made of Keratin as well. Pretty interesting if you think about it. 

Answer 2

Nails are made of keratin.

Keratin is the sort of protein that makes up your hair, skin, and nails. Keratin can likewise be found in your inner organs and organs. Keratin is a defensive protein, less inclined to scratching or tearing than different sorts of cells your body produces. Keratin can be gotten from the quills, horns, and fleece of various creatures and utilized as a fixing in hair makeup. Since keratin is the auxiliary building square of your hair, a few people trust that keratin supplements, items, and medications can help fortify your hair and influence it to look more beneficial.