What does "setting spray" do in makeup application?

Setting spray is an essential product in makeup application that serves the primary purpose of locking in makeup and enhancing its durability throughout the day. When applied after the makeup is completed, it creates a barrier that helps to prevent makeup from smudging, fading, or melting due to environmental factors such as heat, humidity, or perspiration. This means that users can enjoy a freshly applied look for extended periods without having to worry about reapplication or touch-ups.

While other options mention benefits that a setting spray could possibly enhance, they either focus too narrowly on specific aspects, like foundation wear or finish types. Setting spray's main function encompasses a broader role and is crucial for maintaining the overall integrity of makeup throughout its wear. Its formulation is designed to extend the makeup's life rather than focus on just one component or effect. Thus, the choice that highlights its role in locking makeup in place and extending its durability is the most accurate representation of what setting spray does in the makeup routine.