What can i use on my nails to make them less yellow?

Mix 2 tbs of lemon juice and 3 tbs of hydrogen peroxide and soak for about 10 minutes and then use a "buffer"(sold in any retail drugstore; Walgreens, CVS, Walmart)...it should do the trick. Rub vaseline/petroleum jelly on the cuticle afterward...your nails will look great. Always wear a base coat with any color, especially the darker shades..they leave a pigment in the nail.