What is the purpose of using a primer before applying foundation?

Using a primer before applying foundation serves several important purposes, but the primary purpose is to create a smooth base for better application. A primer fills in fine lines, pores, and textural irregularities on the skin, which helps foundation glide on effortlessly and adhere more effectively. This results in an even and flawless finish, allowing for better blending and a more polished look.

Additionally, the use of a primer can enhance the longevity of the foundation, helping it to withstand various conditions throughout the day. While other factors, such as masking imperfections and potentially affecting the waterproof quality of foundation, are important in their own right, the foundational benefit of creating a smooth canvas is central to achieving a professional makeup application. This is why choosing a primer is essential for anyone looking to optimize their makeup routine.