Rays of Hype

If all you're bringing to the beach this year is your tube of SPF-something, you're only half-baked, or so the sun-protection industry would have you believe. A rash of products introduced in the past year or so gives consumers new options -- some sensible, some more wishful -- for boosting their defenses against the sun's damaging rays. Here's a quick sampling of what's new under the sun.