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

Using a top coat in nail application serves several important purposes, and one of the primary reasons is to provide a glossy finish. The top coat forms a protective layer over the colored polish, enhancing its shine and giving the nails a polished, professional look. This glossy finish not only makes the nails appear more attractive but also reflects light, which can help the color stand out more vibrantly.

Additionally, the top coat acts as a barrier against chipping, scratching, and fading, ensuring that the manicure lasts longer. While it does not nourish the nails, add color, or strengthen them, its role in providing that beautiful, shiny finish is crucial in completing a nail look and maintaining its aesthetic appeal over time.