What it is: A dual-ended brush designed to softly diffuse liquid and powder-transition blush formulas for a seamless, airbrushed look. Brush Formulation: All Formulas Brush Coverage: Sheer Bristle Type: Synthetic Ingredient Callouts: It is vegan and cruelty-free. What Else You Need to Know: The smaller end of the brush has a dome shape with softly packed bristles that blend Liquid Transition Brightening Blush (sold separately) into the under-eye area. The larger, fluffy end features dual-fiber bristles that evenly diffuse Transition Blurring Blush Duo powders (sold separately).