Yves Saint Laurent Couture Eyeliner is a high-precision liquid eyeliner designed to create sharp, flawless lines with intense color payoff. Featuring an ultra-fine felt tip applicator, it allows effortless control for both subtle definition and bold, dramatic looks. The long-wearing, smudge-resistant formula glides smoothly onto the eyelids, delivering a rich black finish that stays put throughout the day without fading or flaking. Encased in YSL’s iconic black and gold packaging, this eyeliner combines luxury with professional-level performance.