Sunscreens' uneven coverage

[snopes]

It used to be so simple. When we needed a sunscreen, we picked either the brown bottle, or the other brown bottle. As long as it said SPF 15 or more, we knew we'd be safe.

Or so we thought.

As we learn more about how the sun affects the skin, sun care experts are hoping to teach us that not all rays are alike and neither are sunscreens.

http://www.latimes.com/features/life...,5793924.story

[snopes]

After decades of warnings about the dangers of sun exposure, an increasing number of Americans are making sunscreen part of their skin-care routines. Americans bought 60 million units of sunscreen last year, a 13 percent increase compared with 2005, according to Information Resources Inc., which tracks cosmetics sales.

But the increased demand has spurred an explosion of lotions, sprays, pads and gels with such diverse marketing claims — All-day Protection! Ultra Sweatproof! Total Block! Continuous Protection! Ultra Sport! Instant Protection! Extra UVA Protection! — that cause confusion over how to choose the most effective sunscreen.

http://www.heraldtribune.com/article...77/1006/SPORTS