Black faux brushes are hypoallergenic and safe for sensitive skin. Odor and dye-free when washed, they have minimal shedding (if any). This is the perfect brush to apply the crease color, slightly above the eye crease to open up the eye. This brush is firm enough to use  contour the eye, but soft enough to avoid making a line. Blend over the crease color with the Large Shader brush to soften the color, if needed.