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

Using a base coat in nail application serves the primary purpose of protecting the natural nail. The base coat creates a barrier between the nail and the pigments and chemicals found in nail polish, which can help prevent staining and damage to the nail surface. It also aids in the adhesion of the nail color, ensuring that the polish applies smoothly and lasts longer.

Additionally, base coats can sometimes include nourishing ingredients that contribute to the overall health of the nail, reinforcing their integrity. While a base coat may have other benefits, such as enhancing the color or contributing to the drying process, its main role is centered on protection. This is crucial for maintaining the health and appearance of nails, especially for regular polish users.