Here are some ways to get rid of yellow fingernails.
Giving your nails some time off from nail polish will help to get rid of yellow fingernails. Yellowing is often caused by staining from wearing darker nail polishes. Over using products can also make your nails brittle.
Soak your nails in lemon juice or white vinegar. The acids will help to get rid of yellow fingernails.
Make a paste from baking soda and water and apply to nails. Let sit for 30 minutes to an hour then rinse with warm water. Baking soda has a natural whitening effect and may get rid of yellow fingernails.
Try using a whitening toothpaste on your nails. This will have a bleaching effect to get rid of yellow fingernails.
After any of the above steps, apply moisturizer on your nails to avoid making them more brittle.
To avoid brittle yellow nails in the future, apply a clear nourishing base coat under your nail polish to protect against the nails becoming brittle and yellow.