Final answer:
The first polish applied in a nail polish procedure is the base coat, which protects the nail plate, provides a smooth application surface, and may offer nourishing benefits.
Step-by-step explanation:
The first polish applied in a nail polish procedure is the base coat. A typical nail polish procedure starts with the application of a base coat, which is essential for several reasons. The base coat helps to protect the nail plate, also known as the visible part of the nail, from potential staining that could be caused by colored polishes. Furthermore, it provides a smooth surface that enhances the adherence of the colored nail polish that follows. The base coat contributes to a more even and professional-looking finish.
By acting as a barrier, it also prevents any chemicals present in the colored polish from directly contacting and potentially damaging the nail plate. Lastly, some base coats contain nutrients or strengthening agents that promote nail health and can prevent breakage or splitting. After the base coat dries, the colored polish is applied, and then typically a top coat is added to seal in the color and add gloss to the finish. The entire process ensures the durability and aesthetic appeal of the nail polish job, while also taking care of the natural nail's health.