What is the purpose of applying a base coat on the natural nail?

The application of a base coat on the natural nail primarily serves to improve the adhesion of polish. This is crucial for ensuring that the color coat adheres well to the nail plate, which can significantly enhance the longevity of the manicure. A base coat often contains ingredients that create a better surface for the polish to grip onto, reducing the chances of peeling or chipping and allowing for a smoother application of color.

While a base coat can contribute to shine and is part of the overall manicure process, its main role is to provide a tacky layer that encourages the nail polish to bond effectively to the nail surface. It is not intended for the removal of existing polish or directly to prevent chipping; its primary focus is enhancing adhesion.