Janet Mayer/Splash News

Playing with polish is actually part of my job description (crazy, but true!), but if you're in an office where experimenting with makeup during work hours is "frowned upon," O.P.I offers a solution that's just as fun...

"Try On This Color" is a brilliant new tool that allows you to paint your (virtual) nails with over 300+ shades, as well as change your nail length and skin tone to reflect your individuality. It's a great way to preview shades before purchase, and is far less telling than the scent of an open nail polish pot!

Visit Opi.com for additional details.

CMB/Splash News

Striking, noir-esque shades of plum and black cherry have taken over beauty counters this season— and for good reason. Such mischievous hues are the perfect compliment to the '40s and '80s- inspired fashions of fall.

Find your fix in one (or all) of these favorites:

LIPSTICK QUEEN Shine Sinner in Black Tie
This sexy (and sheer) black gloss tranforms any red lip color into the perfect seasonal shade. $22, Barneys.com.

GIORGIO ARMANI Lip Wax in Deep Chianti
For those who prefer a matte stain, Armani's unique formulation can't be beat. $26, GiorgioArmaniBeauty-Usa.com.

M.A.C Cosmetics Mattene Lipstick in Night Violet
A bold, purple-tone lipstick that provides the perfect wash of color. $14.50, MacCosmetics.com.

CHANEL Rouge Allure Lipstick in Hysteria and Mania
Look-at-me lip color that's both rich and long-lasting. Limited edition. $30, Chanel.com.

Will you be sporting blackberry lips this season?

Dave M. Benett/Getty Images

"Nothing tastes as good as skinny feels.... You try and remember, but it never works."
— Kate Moss tells WWD.

Eugene Gologursky/WireImage

What baby weight? Heidi Klum looks otherwordly at the 2009 Victoria's Secret Fashion Show in NYC.

Soul Brother/FilmMagic

The Olsen twins made quite the statement at Tuesday's MoMA Film Benefit honoring Tim Burton, with each pint-sized mogul modeling a variety of spring '10 inspired beauty looks.

Now we've come to expect the unexpected from Mary-Kate, who walked the red carpet in a bold, two-toned lip— à la Rodarte— but Ashley's candy-colored highlights? A departure, to say the least.

What do you think of the Olsens' runway-inspired hair and makeup? Brilliant or bust?

Lester Cohen/Getty Images

January Jones models two of fall's hottest trends— indigo eye makeup and the high bun— to Wednesday's GQ "Men Of The Year" party in NYC.

Stephen Lovekin/Getty Images

Amplifying limp hair may be a challenge, but reducing volume is often an even bigger feat.

For those of you who struggle with thick, coarse tresses, I've enlisted the expertise of celebrity stylist Marc Mena of Warren-Tricomi Salon— whose clients include Katie Lee and Emily Blunt— to ensure your locks look their best:

Avoid Layers
For thick hair don’t layer so much. If the hair is longer than shoulder-length have your stylist layer, but don’t layer too much as this will be more difficult to style. They should be long layers, you can opt for more layers in the front. Too many layers in the back can make hair puffy and difficult to control.

Lighten Up
Depending on the style of the hair your stylist can cut into the interior of the hair to take the weight out of it, be cautious that they do not over-texture as this will be difficult to maintain and style.

Skip a Wash
Women with thick hair – don’t shampoo too often, this can dry out hair and with thick hair you can go every other day or every two days without shampooing.

Choose Wisely
Use silicone or a nice styling cream product to tame hair and prevent frizz without drying out hair.

Treat Your Tresses
Keratin treatment take a good amount of bulk out of the hair and make it easy to maintain.

Andrew H. Walker/Getty Images

Jamie McCarthy/WireImage

Steve Granitz/WireImage

Jennie Garth models a voluminous, over-the-top coif at the LA premiere of "Twilight: New Moon."