What is the function of a primer in makeup application?

The function of a primer in makeup application primarily revolves around creating a smooth base for foundation. This is crucial because a well-prepared skin surface enhances the application of foundation, ensuring it adheres better and looks more even. By filling in fine lines, pores, and uneven texture, a primer can help achieve a flawless finish. Additionally, it allows the foundation to glide on more effortlessly, which can contribute to a more polished overall look.

While other products might fulfill the roles of setting makeup, providing hydration, or adding color, those are not the primary purposes of a primer. Primers are specifically formulated to prepare the skin for the subsequent layers of makeup, which is why they are essential for achieving a professional and lasting makeup look.