What substance is used on the natural nail prior to product application to assist in adhesion?

Nail primer plays a crucial role in enhancing the adhesion of subsequent products to the natural nail. It is specifically formulated to prepare the nail surface by removing excess oils and moisture, creating a more receptive surface for gels, acrylics, or other nail enhancements. This increased adhesion helps to prevent lifting and ensures that the applied products maintain their bond over time, resulting in a longer-lasting manicure.

In contrast, while a base coat is applied to provide a smooth surface for polish and also protect the nail from staining, it is not primarily designed for adhesion enhancement. A top coat is used after the application of polish to provide a glossy finish and protect the color, but it does not serve the purpose of preparing the natural nail. Similarly, a nail strengthener is intended to improve the integrity of the natural nail, but it does not facilitate adhesion in the same way that a primer does.