Thou shalt always use sunscreen

Of all the skin sins, going out unprotected is the worst.

UV rays cause 90 percent of wrinkles,sun spotsand other signs of aging.

What your complexion craves in warm weather (less oil!

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is different from the TLC it requires in cooler temps.

Because summer air is somewhat humid,you’ll get some hydration naturally.

Stop excess oil from clogging pores with an exfoliating cleanser or a scrub.

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Stick with your daytime SPF-laced lotion, but also apply a rich cream at night to keep skin supple.

Try Nia 24 Rapid Exfoliating Serum, $75, which has nicotinic acid to help skin hold water.

For bodyThe skin here is thicker than that on yourface and neckwhich means it can handle more intense scrubbing.

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Love thy skin in the A.M. and P.M.

Your antiaging plan should be a twice-a-day habit, like brushing your teeth.

We like Olay Regenerist Micro-Sculpting Serum, $25.

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Try Philosophy Miracle Worker Miraculous Anti-Aging Retinoid Pads and Solution, $70.

Never miss a chance to hydrate.

Set your DVR and watch late-airing shows early the next evening instead.

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Never (ever!)

pop or touch pimples

“Yourhandscan transfer more breakout-inducing bacteria to the area,” Dr. Blyumin-Karasik says.

“And most people squeeze too hard, causingtrauma to skin.”

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Both of which mean your pip-squeak pimple may turn into a huge, inflamed cyst.

It calms you (and skin) down.Exercise is a proven mood booster.

Phytochemicals and antioxidants (inleafy greens, carrots, tomatoes, etc.)

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and fatty acids from fish such assalmonallow your body to fight sun-induced damage.

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