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

The base coat in nail care serves a crucial function in both protection and adherence. It acts as a barrier between the natural nail and the colored polish, preventing staining from pigments found in nail polishes that could discolor the nails over time. Additionally, the base coat creates a textured surface that helps the polish stick more effectively, which can contribute to a longer-lasting manicure.

This role of the base coat is especially important in maintaining the health and appearance of the nails. It ensures that the polish applies evenly and prevents the formation of air pockets, which can lead to peeling or chipping. By using a base coat, you can help ensure that the color applied on top adheres better and remains intact for a longer duration.

The other choices, while relevant to aspects of nail care and polish application, do not accurately capture the primary function of the base coat.