By all accounts, Kristen Stewart has amazing skin. Besides good genes and perhaps an excellent dermatologist though, what does she use to keep it that way? Well, wonder no more. Kristen's makeup artist, Beau Nelson, has been tweeting about what he uses on her skin to get that trademark glow. He says the secret to her complexion is Kanebo skin care, Shu Uemura Nobara Cream Cover Stick ($42), and Giorgio Armani Luminous Silk Foundation ($59). So if you didn't know, now you do.