Tips for more youthful-looking skin [added later]

HANDS OFF YOUR EYES

You are too thin—at least around the eyes. Don't rub, poke, or otherwise fiddle with the skin there. "Every time you do, you risk breaking delicate blood vessels, which leads to darkening, dulling, and thickening of the surrounding skin," says Fusco.When choosing an eye cream, look for gentle anti-aging ingredients like peptides (Olay Professional Pro-X Eye Restoration Complex) or zinc (found in Relastin Eye Silk)—a current favorite of Leslie Baumann, director of the University of Miami Cosmetic and Research Institue. "It's been shown to increase elastin production, which can reduce crepiness," she says.

DON'T DRINK, DON'T SMOKE

What do you do? Take care of your body to take care of your skin, that's what. Smoking is an infamous wrinkle factory that destroys collagen and elastin. (But you knew that.) Less well known is that more than one glass of alcohol increases inflammation in the bloodstream, "which can hasten sagging over time," Brandt says. Eating too much sugar is also a vice for your skin (not to mention your waistline), he says—it may affect the body's ability to repair damaged collagen.

CLEAN UP YOUR ACTIONS

Remember the little things. They can lead to big trouble—like premature aging.• Stop squinting (sunglasses help). And if you wear eyeglasses or contact lenses, make sure your prescription is up to date.• Avoid sipping through a straw. It contributes to lines around the mouth.• Break the habit of resting your chin on your hand. (It stretches the skin.)• Switch to a smooth satin pillowcase. The creases in cotton eventually make their mark on your face.

DON'T FORGET YOUR NECK AND HANDS

They're the body parts most likely to betray the age that's on your passport even when your face doesn't. Get them on the same daily maintenance program as your face, with sunscreen every morning and retinol at night. Dab hydroquinone on sunspots, and exfoliate twice a week. (We like the gentle but powerful St. Ives Elements Microdermabrasion scrub).