To score an appointment with famed dermatologist Dr. Frederic Brandt, you'll need a lot of patience — the man has a waiting list like you wouldn't believe. But with an iPhone, you can access some of his best advice with just a few taps. His free application gives answers to complexion conundrums, provides information about cosmetic dermatology procedures, and shows your local UV index so you know how to protect skin. If you're inclined to shop Dr. Brandt's skin care line, you can enter your skin concerns and receive product recommendations, too. Is it the same as getting face time with the doctor himself? No, but for skin advice, it's a good place to start.