This neon eyeliner features true fluorescence, showcasing a vibrant glow under ultraviolet light. However, without a light source at night, it will not emit light. The toner may settle, so be sure to vigorously shake before use for optimal consistency and effect. With excellent coloring and quick-drying properties, this waterproof and sweatproof product can be easily removed with warm water. It can be used as both an eyeliner and a facial paint. If you are allergic to fluorescent agents, use with caution. The product comes in a variety of stunning shades and is suitable for all skin types. Please keep out of reach of children and store at room temperature in a cool, dry place. If any discomfort occurs, discontinue use immediately. The product has a shelf life of 2 years and contains 10g of product. Dimensions are 7*1*1cm and it weighs approximately 15g.