What is the purpose of a primer in makeup application?

A primer serves a crucial role in the makeup application process by creating a smooth and even base for other makeup products. Its primary purpose is to enhance the longevity of makeup, ensuring that it stays in place throughout the day. A well-formulated primer improves adherence, allowing foundation and other products to apply more evenly and smoothly, which contributes to a flawless finish.

Additionally, primers can help fill in fine lines, pores, and other imperfections on the skin's surface, creating a canvas that allows subsequent makeup products to blend seamlessly. This foundation of good application improves the overall look and feel of makeup, contributing to a more polished appearance.

While other choices touch on various aspects of makeup, they do not encompass the primary role of a primer as effectively. Some options focus on specific benefits that might be provided by other types of products, such as oil control or hydration, which are important but are not the fundamental purpose of a primer.