Blur primer is a makeup product applied before foundation to create a smooth, even base. It fills in fine lines, wrinkles, and pores, minimizing their appearance. By diffusing light, blur primer helps create a soft-focus effect, resulting in a blurred, airbrushed look. Its lightweight formula allows it to absorb oil without clogging pores, leaving skin feeling silky and matte. Blur primers enhance the application and longevity of subsequent makeup, ensuring a flawless, long-lasting finish.