Create one-stroke definition with the IT Cosmetics Superhero Liner. This pen liner comes to the rescue time after time, delivering thin, thick or cat-eye strokes. To ensure application is easier than ever, the waterproof formula features the brand’s Heavenly Skin brush hair tip. Unlike standard felt-tip liners, this applicator resists fraying as it glides on with control and precision. Packed with peptides, collagen, biotin, keratin and kaolin clay, the lash-loving liner supports a smooth, long-wear finish. What’s more, it’s budge- and smudge-proof.