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 thermosensitive technology that transforms the formulation 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: Thermosensitive gel that reacts to skin temperature and transforms into an inky texture with incredible precision. Surface-coated pigments provide intense color payoff. Film formers prevent the formulation from smudging or running. Application: Twist the tip out about one millimeter (one or two clicks) and glide along the lash line over the lids. Secure tightly after use.