Korea has been the top country among 34 OECD countries in terms of the number of people who suicide every year for many years. Even though the suicide rate has been high among the people with all ages, teenagers has been one of the major groups who have serious suicide rate recently. Due to this situation, many people are worried about the country’s future and Korean’s overall mental health. This exploratory study investigated the effectiveness of the messages used on the web sites promoting suicide prevention under the situation where diverse PR efforts are needed to reduce the suicide rate among young people in Korea. Through a paper-based survey, the authors examined the teenagers’ attitudes toward suicide prevention messages which applied gain/loss framing. The attitudes toward the messages when those are conveyed by celebrities (entertainers) and medical professionals were also investigated. In the results, it was found that the participants in this study showed more positive attitudes toward when they are exposed to the messages with loss framing. Also, people had more positive attitudes toward the suicide prevention messages if those are provided by celebrities rather than by medical professionals.