A lash glue eyeliner pen is a versatile and convenient product that combines the benefits of both eyeliner and lash adhesive. It's like a magic wand for your eyes. This pen allows you to apply eyeliner to your upper lash line while also serving as a lash adhesive, making it easy to attach false eyelashes. The dual functionality simplifies the lash application process, as you can line your eyes and secure your lashes in one step. It's a time-saving and efficient solution for achieving a flawless eye makeup look.