A limited number of studies have examined ways that health promotion messages about condoms can be improved, leading to increased purchase and use. This study tests alternative message structures as a potential avenue to improving condom advertising. As hypothesized, two-sided messages (positive and negative information about the product category) result in more positive attitudes toward the advertisement and the brand than do one-sided messages (positive information only about the product category). The study's implications for health care marketers interested in developing more effective advertising for condoms and other health care products are discussed.