Islands Earth Whiter Nails Stain Remover Support 1.5 oz Powder. 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 powder is applied to a wet cotton ball then massaged into the fingernails or toenails. The powder can be left on the nail to work 2 to 15 minutes to support lifting stains then rinsed off with water. An Islands Earth Original Product.