What is the main purpose of a primer in makeup application?

The main purpose of a primer in makeup application is to create a smooth base and extend the wear of other makeup products. Primers are formulated to help foundation and other face products adhere better to the skin, which can significantly enhance the longevity of makeup throughout the day. By filling in fine lines and pores, a primer prepares the skin for makeup, leading to a more flawless appearance.

In contrast, while some primers may have moisturizing properties, their primary function is not to serve strictly as a moisturizer. Primers are distinct from products specifically designed to add color, such as blush, as they do not contribute to the overall color of the face. Additionally, primers do not facilitate the removal of makeup; other products, like makeup removers or cleansing agents, serve that purpose. Therefore, the role of a primer is crucial in achieving a polished and enduring makeup look.