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

The main purpose of a base coat in nail care is to protect the natural nail from staining. Base coats are specifically formulated to create a barrier between the natural nail and the colored polish applied over it. Without this protective layer, pigments from nail polishes can seep into the nails, leading to discoloration or staining. By using a base coat, you not only maintain the health and appearance of your natural nails but also help the manicure last longer by improving adhesion between the nail polish and the nail surface.

In addition to protection, base coats may have additional benefits, such as enhancing the polish's durability or providing a smooth surface for the color application, but the primary focus remains on preventing staining.