Nevada State Board of Cosmetology Practice Exam

What function does a base coat serve in nail services?

1. To add a layer of color

2. To create a smooth foundation and protect the natural nail

3. To provide a glossy finish

4. To seal the nail polish

The correct answer is: To create a smooth foundation and protect the natural nail

A base coat is an essential product used in nail services, serving primarily to create a smooth foundation on the natural nail surface. This smooth foundation helps in achieving an even application of color polish, enabling the color to lay down uniformly, which enhances the overall appearance of the manicure. Additionally, the base coat plays a protective role for the natural nail. It acts as a barrier between the natural nail and the colored polish, which can sometimes contain pigments or chemicals that may stain or damage the nail. By applying a base coat, you ensure that the natural nail is safeguarded from potential discoloration and helps in maintaining its health, particularly when using darker nail polishes. The other options, while related to nail services, do not accurately represent the primary function of a base coat. Adding a layer of color refers more to the nail polish itself rather than the base coat. Providing a glossy finish pertains to the top coat, which is applied after color application for shine and protection. As for sealing the nail polish, this function is also associated with the top coat, which locks in the color layer and provides longevity to the manicure.