There's nothing sexier than a red lip. It's the one item that every woman should have in their makeup arsenal.

Coincidentally American consumers agree, as a study from NPD Group has reported that MAC'S Ruby Woo is the best-selling lipstick in America. Ladies across the fifty states swear by this $16 tube of matte, ravishing red lip color.

VP of global product development of MAC, Jennifer Balbier, dished, "It immediately rose to success as the best red on the market. It is iconic! We sell millions of units a year.”

Vixens, what are your thoughts? Do you personally own Ruby Woo or a red dupe of the best-selling lipstick?

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