What is the primary purpose of using a base coat?

The primary purpose of using a base coat is to protect the nail from staining. When colored nail polishes are applied directly to the nail, especially those that are dark in color or contain strong pigments, there is a risk that they can cause discoloration or staining of the natural nail. A base coat serves as a barrier that safeguards the nail from these potentially harmful dyes, ensuring that the nails remain healthy and maintain their natural appearance.

In addition to its protective qualities, a base coat can also help in improving the longevity of the manicure and can aid in creating a smoother surface for the polish. However, the primary emphasis of its role is to prevent staining, making it an essential step in any nail care routine.