What is the purpose of applying a top coat to nails?

Applying a top coat to nails primarily serves the purpose of sealing the polish, adding shine, and extending the wear of the manicure. A top coat functions as a protective layer over the colored polish, creating a barrier that helps prevent chipping, peeling, and fading. This not only enhances the overall appearance by providing a glossy finish but also contributes significantly to the longevity of the nail polish, allowing it to look fresh for a more extended period.

While options such as adding color, reducing the chance of nail fungus, and providing a base for nail enhancements may relate to other aspects of nail care, they do not encompass the essential functions of a top coat. The primary intention of a top coat is indeed to protect and perfect the applied color, making it an indispensable step in any nail care routine.