Despite the growing importance of creative advertising as an effective marketing tool, little is known about the process through which it influences preexisting attitudes for familiar brands and factors that moderate its effectiveness. To fill this gap, A 2 advertising type (creative vs. normal) by 2 product category (high risk vs. low risk) experiment was conducted. Four creative ads and four normal ads were developed for some familiar brands and were exhibited for participants. Results indicate that creative ads significantly lead to more favorable ad credibility, ad attitude, brand attitude, and purchase intention than normal ads. Perceived product risk was found to moderate the effectiveness of creative ads.