What is the primary purpose of applying a base coat?

The primary purpose of applying a base coat is to protect the natural nail. A base coat serves several essential functions; most importantly, it creates a barrier between the nail and the potentially harmful chemicals found in nail polish. By using a base coat, you help to prevent staining of the nail plate that can occur from darker or pigmented polishes. Additionally, it can help to strengthen the nails, especially when formulated with nourishing ingredients, and sometimes it aids in adhering the color polish to the nail, allowing for a longer-lasting manicure.

While adding color, drying quickly, and enhancing shine are important aspects of nails and manicure processes, they are not the primary functions of a base coat. Those aspects are typically associated with the color polish itself or top coats designed explicitly for creating a shiny finish or quick-drying properties. Thus, the focus of a base coat is mainly on protecting the natural nail and providing a suitable foundation for the color application.