An eggshell finish is a very thin paint finish that has a slight sheen to it, similar to the finish of an eggshell. It is often used in areas where a high-gloss finish would be too shiny, or in areas that need to be cleaned often, such as kitchens and bathrooms. Eggshell finishes are easy to clean and maintain, and they resist dirt and stains better than other types of paint finishes.