Bobbi Brown Mini Face Blender Brush. New and Sealed 100% Authentic, Professional Brush. Brush valued at $30.00. Great for travel 4 inches. What it is: A utilitarian brush that's ideal for those just starting to build their brush collection. Use it to apply bronzer, blush, powder, or Shimmer Brick. What it does: This is a great multipurpose brush, ideal for dusting Shimmer Brick Compact on cheekbones for a natural-looking, shimmery glow. The Face Blender Brush can also be used with Sheer Finish Powder, Blush, or Bronzing Powder and is great for travel.