THE next time R. J. Reynolds Tobacco asks smokers to walk a mile for a Camel, watch how many of them are in high heels.

Reynolds, eager to increase the sales of its fast-growing Camel brand among women, is introducing a variety aimed at female smokers. The new variation, Camel No. 9, has a name that evokes women’s fragrances like Chanel No. 19, as well as a song about romance, “Love Potion No. 9.”

But don’t look for a Jo Camel to join Old Joe the dromedary on Camel packages, displays or posters. Rather, Camel No. 9 signals its intended buyers with subtler cues like its colors, a hot-pink fuchsia and a minty-green teal; its slogan, “Light and luscious”; and the flowers that surround the packs in magazine ads.

For decades, Camel has been a male-focused cigarette; only about 30 percent of Camel buyers are female. By comparison, for competitive brands like Marlboro and Newport, women comprise 40 percent to 50 percent of customers. Almost half of adult smokers are women, so that limited Camel’s potential.