Some 43 percent of women suffer with sexual dysfunction, compared to 31 percent of men, according to University of Chicago researcher Dr. Edward Laumann. And some $2 to $3 billion will be spent within the next ten years on products aimed at improving the sex lives of these women.

Female sexual dysfunction is characterized by a lack of desire, arousal and orgasm. Lack of desire is the chief complaint among women, affecting about one-third of them at some point in their lives.