But now an even bigger challenge: how to remove waterproof mascara without losing any eyelashes in the process? Waterproof mascara is designed to last the night and then some. Want to know how to remove waterproof mascara without damaging your lashes? How to remove waterproof mascara With those long-lasting results comes a different removal process. The best products for removing waterproof mascara For waterproof mascara removal, Mieloch uses an oil-based cleansing balm.