What It Is: A multi-use concealer pen with medium-to-full buildable coverage and a natural matte finish that is transfer-proof, waterproof and wears for 36 hours. What It Does: Click, tap, go! Conceal and correct with MAC's multi-use concealer pen that doesn't cake or crease. This lightweight, hydrating formula provides medium-to-full buildable coverage with a natural matte finish. It's transfer-proof, waterproof and lasts for 36 hours for superior wear. Use to spot conceal blemishes & undereye circles or use all over to correct redness and even skin tone. Infused with vitamin E, hyaluronic acid and caffeine, this formula applies, builds and blends easily. Available in flexible shades made for all-over wear for everyone. Key Claims and Benefits: Multi-use, lightweight, hydrating formula 36-Hour longwear Medium-to-full buildable coverage & natural matte finish Doesn't settle, cake, crease or streak Transfer- & waterproof, sweat- & humidity-resistant Dermatologist tested Does not cause acne Suitable for all skin types How to Use: Twist the bottom of the pen to unlock and click half-way to spot-conceal or all the way for all-over coverage. Using the 171S Smooth Edge All-Over Face Brush (sold separately) or your fingertips, blend the product into skin. Twist the bottom again to lock and snap the lid onto the pen. 0.4-oz.