Long-wearing, natural-looking result that lasts all day. IDUN Minerals Mascara Vatn Waterproof 38°C coats lashes in a caring and waterproof formula that resists water up to 38°C, preventing smudging and smearing. Featuring a soft and bendable tapered rubber brush that lines up ultra-thin bristles, precisely adjusted for the optimal cling and natural-looking application. Subtle lash-defining waterproof mascara boasting a silk-smooth black formula and ultra-precise rubber wand. The ultra-thin elastomer bristles separate lashes evenly, defining and coating them in a waterproof caring formula.