What is the recommended product to remove stains from nails?

Removing stains from nails often requires a product that can gently lighten or cleanse the stained area without causing damage to the nail itself. Nail bleach is specifically formulated for this purpose, as it contains ingredients that can effectively target and lighten discoloration caused by various factors, including nail polish, smoking, or other staining substances.

Nail polish remover, while effective at removing the polish itself, may not adequately address deeper stains or discoloration on the nail plate. Buffers can improve the appearance of the nail by smoothing the surface but do not possess the ability to chemically remove stains. Cuticle oil is used to moisturize and nourish the cuticles and nails but does not have any stain-removing properties.

Nail bleach is thus the best option for those looking to remove stubborn stains, making it the most appropriate choice in this scenario.