"Speed up turnover." Bump up your retinoid use to four or five nights a week to stave off wrinkles, uneven texture, and loss of elasticity. "It gives you an antiacne, antiwrinkling effect with little to no drying or irritation," says Bank. (If you have sensitive skin, try less-irritating Kinerase instead.) On nights you're not using a retinoid, smooth on a potent exfoliant like glycolic or lactic acid to speed cell turnover; if your skin can tolerate it, apply a mild at-home glycolic peel once a week.
"Mmm, antioxidants!" They boost sun protection and fight free radicals (destructive molecules that are formed when your skin comes into contact with UV rays, pollution, allergens and a host of other irritants). "The most effective include vitamin C and tocopherol [a potent form of vitamin E]," says Bank. Green tea and selenium may also be beneficial. Look for them in your moisturizers and sunscreens.