What is the primary purpose of using a primer in makeup application?

The primary purpose of using a primer in makeup application is to improve makeup longevity. Primers create a smooth base for makeup to adhere to, which helps the makeup last longer throughout the day without fading or breaking down. They often contain specific ingredients that can enhance the wear of foundation and other products, providing a barrier between the skin and the makeup. This barrier not only helps in holding makeup in place but can also control excess oil and minimize the appearance of pores, contributing to a more flawless finish.

While setting makeup, evening out skin tone, and hydrating the skin are also important aspects of makeup application, they serve different purposes. Setting sprays or powders are typically used after makeup application to lock everything in place. Products designed to even out skin tone are often foundations or BB creams, and hydrators are skincare products used before makeup. The focus of a primer is specifically on enhancing the durability and overall appearance of makeup, which is why its primary function is to improve makeup longevity.