Islands Earth Whiter Nails Stain Remover Support 1.5 oz. This formula helps to return nails to its original color. Helps support removal of fingernails and toenails polish stains from fingernails and toenails. Helps whiten nails. This already prepared formula is applied to a cotton ball then massaged into the fingernails or toenails. The Formula can be left on the nail to work 2 to 15 minutes or as an overnight treatment to support lifting stains then rinsed off with water. An Islands Earth Original Product.