Volumizing mascara is designed to thicken and amplify lashes, making them appear fuller, denser, and more dramatic. It typically has a rich, creamy formula and a dense, fluffy brush that coats each lash generously to enhance volume. This type of mascara is perfect for those with thin or sparse lashes who want a bold, eye-catching look. Some volumizing mascaras also contain fibers or collagen-infused formulas to plump up lashes even more.