Bright lights, big city ... big zit? Several studies, including one published in the "Journal of Investigative Dermatology" and another in the "International Journal of Cosmetic Science," have long suggested that smog could be stressing out -- even damaging -- human skin cells, depleting them of valuable substances like Vitamin E. So what's a city girl to do? Adopt these 10 lifestyle habits and send those pesky skin irritants packing.

While "space punk" appeared to be a red carpet theme, these artists all brought their individual style to MTV's 2009 Video Music Awards (case in point: Lady Gaga). Here, we present our most crave-worthy (and cringe-worthy) picks for hair and makeup.

Red lips, statement-making hair accessories, tousled waves and defined brows are some of the most copy-worthy trends of the season. But just because they're trends doesn't mean everyone should try them -- as these celebrity photos prove. See which A-listers mastered the looks and which ones should stick to their classic hair and makeup styles next time.

"Melrose Place" addicts are getting a second shot at bliss as the series gets revived this fall. Take a look at the best and worst hairstyles of the women of "Melrose," then and now.

Some products, like these amazing serums, can completely revamp how our skin looks. Unfortunately, the serums on this list either didn't do much at all, or gave our readers worse skin (yikes!). Check them out, so you know what not to try.