What is the primary purpose of a base coat when applied during a manicure?

The primary purpose of a base coat during a manicure is to provide a smooth surface for nail polish application. This smooth base helps ensure that the nail polish adheres better and applies more evenly, reducing the appearance of uneven textures or ridges on the natural nail. By creating this uniform layer, the finish of the nail polish appears much more flawless, allowing for a more professional look.

Additionally, while a base coat can also contribute to protecting nails and may enhance the color of the nail enamel, its essential function is to serve as an even foundation for color application. This makes the manicure more durable and can help prevent chipping, thereby extending the wear of the polish.