Nail issues can often indicate a vitamin deficiency. White spots indicate a lack of Calcium, small vertical ridges indicate a lack of Potassium.
Finger my crack
Nails (and finger nails) have volume.
Finger nails are made of a protein called keratin.
No one invented finger nails.
Actually, finger nails contain protein (called "keratin").
no
By system, you mean category.. I'm not sure if you mean finger nails or like tool nails, so I'll give you both. Finger nails: Body parts Tool nails: Hardware
Finger nails (and toe nails) are made of keratin.
For finger nails :no,the other nails are iron , copper, etc but not plastic
Nails
Me? i bite my finger nails.
yes