To use this eyeliner, hold it like a pen and gently glide the 2mm tip along your lash line. You can create a thin or thick line according to your preference. Before using it for the first time, give it a little twist to expose the liner. When you're done, make sure to cap it tightly to prevent it from drying out. Keep it in a cool, dry place away from direct sunlight. If you get some on your skin accidentally, use a makeup remover to clean it up. Avoid using it if your eyes are irritated or injured.