Because it has calcium carbonate and calcium together with flouride makes your teeth stronger! :))
calcium
Eggshell nails are caused by a deficiency of essential vitamins and nutrients in the nails matrix. Vitamin supplements and proper nutrition will help the nail to grow healthier.
Eggshell nails are very thin and fragile. This condition causes your nail to curve dramatically over the tip of your finger. Eggshell nails may be caused by medication, diet or even a nervous disorder.
Eggshell
The eggshell is porous.
latin word of eggshell
Some causes to chlorate are not brushing your teeth everyday like you should and not using flouride in your toothpaste. Those are the causes of chlorate.
picture of an eggshell nail
It will soften, or even dissolve, eggshell.
Calcium Carbonate is the main component in an eggshell
The eggshell provides protection.
Yes, you can put polyurethane paint over eggshell in latex or eggshell in oil.