Most common questions used to investigate
Do you remove your nail polish?
Do you use a buffing board?
Are you rubbing lemon on your nails?
Are you applying whitening toothpaste to your nails?
Common conclusions
You should start removing it. You should use a cotton ball soaked in nail polish remover to take off any nail polish currently on your nails. Simply rub each nail with the cotton ball until all of the polish has completely dissolved.
You should buff your nails. Use a fine grit buffing board to lightly sand off the topmost layer of each of your nails. Gently rub the buffing board on the surface of your nail, moving the board straight back and forth, perpendicular to your nail. This light buffing can remove the top, stained layer of your nail, while exposing your unstained, clean nail underneath. Only buff each nail for about 10 seconds. You want to be careful not to remove too many layers of your nail.
You should apply a thin layer of toothpaste containing hydrogen peroxide to all of your yellowed nails. Use your fingertips or a old, soft bristled toothbrush to rub the toothpaste all over the surface your nails. Allow the toothpaste to sit on your nails for approximately 10 minutes, and then rinse off the toothpaste with clean water.
References
Related Problems