Concealer brush is a cosmetic tool, which is used to evenly apply concealer products to face skin to cover skin problems such as blemishes, acne and dark circles. Concealer brushes usually have dense bristles, which can accurately apply concealer products on the areas that need to be modified, so that they naturally blend into the skin and avoid excessive application or uneven phenomenon. Concealer brush can provide more accurate and uniform concealer effect, making skin look more smooth.