The waterproof eyeliner Kost 01 by Kost Make Up is the ideal product for an intense and defined look that lasts all day. Its innovative formula, resistant to water and sweat, ensures una impeccable hold without smudging, even in the most challenging situations. The fine and precise tip allows for easy and controlled application, perfect for creating thin lines or bolder looks. Thanks to its lightweight texture, it dries quickly, ensuring comfort and long-lasting wear without drying out the delicate skin of the eyelids. Available in a deep and vibrant black, this eyeliner enhances every type of makeup, making it a must-have for those who desire elegance and performance in one product.