What it is: A waterproof version of Diorshow Overvolume mascara that successfully combines extreme volume and lash-by-lash definition. Formulation Type: Volumizing Benefits: Long-wearing, Waterproof What Else You Need to Know: This waterproof mascara instantly delivers extreme volume boost while defining each lash for a fanned-out look. It coats lashes in a deep-black shade and is infused with D-Panthenol to help revitalize and strengthen their look.