What it is: A dense shader brush that precisely applies and smudges eyeshadow or eyeliner.Brush Formulation: All FormulasBrush Coverage: BuildableBristle Type: SyntheticWhat Else You Need to Know: The SEPHORA COLLECTION Smudge Brush is your go-to brush for flawless and precise lining of the eyes. Its short, rounded head with dense fibers allows you to easily apply, blend, and diffuse eyeshadow or eyeliner. This brush provides maximum control for maximum impact, whether it’s onto the upper or lower lash lines.