"We tend to treat our skin as if it is a shell when it is, in fact, a living, breathing organ," says certified makeup artist Nicole Lundy. The skin isn't just another organ, though, she reminds us. Unlike our other organs, skin is exposed to the environment on a daily basis. The steps we take to protect and nourish our skin become increasingly apparent as time passes. In addition to eating well and keeping the sun off your skin, use beauty products that help nourish and protect your skin.