The Black Inkstay Waterproof Liquid Eyeliner is your go-to product for bold, precise eye definition. This long-lasting, smudge-proof formula ensures all-day wear without fading or transferring. Its quick-drying, intense black pigment glides on smoothly, allowing for effortless application and a sharp, defined look. Perfect for creating dramatic lines or subtle definition, this waterproof eyeliner is designed to withstand sweat, humidity, and tears, making it ideal for every occasion.