Exfoliate
Exfoliating is a crucial step in your anti-aging skin care routine. Dr. Lancer recommends exfoliating with a mechanical or chemical exfoliant once per week at night, then exfoliating more frequently as you learn what your skin can tolerate. (Exfoliate less often if you have sensitive skin or rosacea.) "Chemical exfoliants are topical agents that can contain citric, glycolic or lactic acids," he explains. "Mechanical agents use some sort of grain or bead." But be cautious when using those scrubby exfoliants. Irregular or jagged particles, such as walnuts or apricot pits, can tear the skin.

Exercise
"Moderate exercise, such as Pilates, yoga and stretching, is crucial to skin health," says Dr. Lancer. "It increases circulation, oxygenating the skin and organs and helps to flush toxins out of the skin through our sweat." You can even do facial yoga! See six face yoga poses.

Fire
It's only natural to want to curl up next to a fireplace or scoot a little closer to that heater vent when it's freezing outside, but sitting too close to a heat source can break down collagen, thin the skin, and ultimately cause premature wrinkling similar to the damage done by UV rays. "If you use a small space heater near your desk or chair, change its position so it doesn't continually hit the same part of your skin," says Los Angeles dermatologist Dr. Jessica Wu.

Glycolic acid
"Glycolic acid is the most widely used AHA (see A) in skin care products," says Dr. Woolery-Lloyd. Dr. Lancer recommends introducing glycolic acid into your skin care routine as a chemical exfoliant gradually, because it can irritate or scar darker skin tones.

Hyaluronic acid
"This is a sugar produced by the body to keep tissues cushioned and lubricated," says Dr. Lancer. As you age, or if you don't maintain a healthy diet (which, let's face it, happens), you lose hyaluronic acid. Look for this in moisturizers to plump the skin for a more youthful appearance.

Ionized water
"Free radicals thrive in acidic environments, which increases cell oxidation, one of the root causes of aging," says Dr. Lancer. Drinking ionized water from a filter or ionizer can help maintain the alkaline pH in your body. Ross Bridgeford, author of "The Alkaline Diet Recipe Book," recommends starting slowly by drinking mild alkaline water for two weeks, slowly increasing the pH level. (The pH of tap water typically ranges from 6.0 to 8.4 pH; ionized water ranges from 8.4 to 9.4 pH.)