What is the primary role of a base coat in nail application?

The primary role of a base coat in nail application is to prevent staining and improve the wear of nail polish. Base coats serve as a protective layer between the natural nail and the colored polish, helping to prevent pigments in the polish from seeping into the nail and causing discoloration. By providing this barrier, the base coat also enhances the adherence of the nail polish, which can lead to longer-lasting wear.

Additionally, base coats often contain various formulations that can strengthen nails, promote better adhesion, and sometimes even offer hydrating benefits. This functionality is essential for maintaining healthy nails while ensuring that the cosmetic coating stays intact for a longer period.

While other functions like creating a glossy finish, speeding up drying time, or forming a thicker layer might be associated with different products used in the manicure process, they do not capture the primary purpose of a base coat in traditional nail application.