What is the purpose of a base coat in nail application?

The purpose of a base coat in nail application is to protect the natural nail and enhance the adhesion of polish. A base coat serves as a barrier between the nail and the colored polish, preventing staining and damage to the nail surface that can occur from certain pigments found in nail polishes. Additionally, by providing a smooth surface, it allows the nail polish to adhere better, which can increase the longevity of the manicure and prevent chipping. The use of a base coat is essential in achieving a professionally finished look, as it aids in the overall application process by promoting even color and an improved finish for the color coat applied afterward.