This tenacious M·A·C waterproof foundation formula can be used as a foundation or concealer, wearing for an unprecedented 36 hours. Neither rain nor tears can budge this oil-free waterproof, sweat- and humidity-resistant foundation. M·A·C Pro Longwear Nourishing Waterproof Foundation blends seamlessly on the skin with medium-to-full weightless coverage and a natural satin finish. Let your look outlast your face mask! This formula is mask-friendly, transfer-resistant and it won’t cause acne.