MUA Brow Define Styling Soap – Precise Brow Styling Made Easy: Transparent Formula for Natural or Fluffy Finish. Transparent brow soap to set your brows in the shape you desire. Ideal to enhance your natural shape or create a fluffy brow look effortlessly. Recyclable Packaging & Spoolie Tools Included. The packaging is fully recyclable and includes 2 spoolie brushes for quick and easy application. Before use, spray the spoolie with a setting spray for best results.