Amy Wechsler, MD, 36, psychiatrist and dermatologist in private practice. Daughter Zoe, 7
Why she's in a unique position to give beauty advice: "Because of my two specialties, I've often thought about the way confidence, grace, happiness, and other emotions manifest on a person's face—as well as the way sun damage does."
The mistakes she hopes her daughter never makes: "I hope she doesn't glob on a lot of makeup; she has such natural beauty, and that would mask it. It could also make her break out. I hope she never picks at her skin, because that can be scarring."
How old she would like her daughter to be before she wears lipstick: "Oh, it's up to her."
So 11 is okay? "Hmm. High school."
Her best advice: "Number one: Your inner life will be reflected on your face, so take care of yourself. And number two: Sun damage is hard to undo, so always protect your skin with sunblock, the most important beauty product of all."