I use it to intensify an eyeshadow and spray it on my whole face for a burst of thirst. Mac fix plus is not a make up setting spray or primer. It is a finishing spray designed to take off the powdery, cakey look from your makeup, leaving your skin looking fresh. Many people think it's for setting makeup but it's not. It is a little confusing and many people think it's a setting spray but it's not. Even a Mac rep should tell you it's not a setting spray. You can also use it on a beauty blender to apply foundation for a dewy coverage. Hope this helps.