SKIN DEEP: Blue-Light Special

Your skin may do a fine job of keeping you under wraps, but gain weight or grow rapidly, and it can show signs of wear and tear: tiny scars known as stretch marks. Now doctors may have come up with a way to minimize those unsightly, sunken streaks. (Forget cocoa butter and vitamin E; they don't help.) At a dermatological meeting in October, researchers will present the results of a study in which stretch marks were zapped with the new excimer laser. Lasers have been used for a decade on fresh stretch marks that are still red. But the blue beams...

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