Micro-precision eyeliner. This easy-to-use eyeliner is infused with highly effective pigments that deliver smudge-proof, rich, matte color. The eyeliner features a thermosensory technology that allows the formulation to transform from solid to liquid upon contact with the skin. This creates a flexible, water-resistant film that lasts up to 24 hours. The micro-fine tip of this next-generation pencil can be dabbed between the lashes or glided over the lid with exceptional precision and without interruption. Inspired by sumi ink pens used in traditional Japanese calligraphy, it is available in five shades. Dermatologist and ophthalmologist tested. Key ingredients: Thermosensory gel: reacts to skin temperature and transforms into an ink-like texture with incredible precision. Surface-coated pigments: provide intense color payoff. Film formers: prevent the formulation from smudging or running. Application: Twist out about one millimeter (one or two clicks) and glide along the lash line over the lids. Secure tightly after use.