Great black eyeliner that lasts all day. The formula of the liner is not too creamy, hence it doesn't "slip" off or smudge during the day. Love to use it for tight lining and even outlining the eye. I would say that if you looking to do smudged out liner looks, rather not use the Revlon Colorstay eyeliner. It doesn't smudge that easily (its for longwear).