Description | The famous M·A·CStack Mascara is now Waterproof and Smudge-Proof for 24 Hours! This must-have, buildable, clump-proof mascara delivers gravity-defying volume, instantly lengthens and curls lashes, and guarantees a flawless look with its NEW waterproof formula. Drench-Defense Technology allows the product to coat each individual lash, repelling water and humidity. | | Ingredients | | How to Use | | Manufacturer | | Safety | | The famous M·A·CStack Mascara is now Waterproof and Smudge-Proof for 24 Hours! This must-have, buildable, clump-proof mascara delivers gravity-defying volume, instantly lengthens and curls lashes, and guarantees a flawless look with its NEW waterproof formula. Drench-Defense Technology allows the product to coat each individual lash, repelling water and humidity.