Online review system providers often use review templates to guide reviewers in sharing their product experiences in online consumer reviews. However, there is a huge number of reviews that cover similar product aspects and provide repetitive and less diverse information. To address this issue, we propose to use review templates that dynamically adapt to existing product information in reviews to guide reviewers towards sharing product experiences that have not or only rarely been shared before. Employing the design science research paradigm, we derive design requirements and develop design principles for the design of dynamic review templates. Based on an instantiated dynamic review template following these principles, we show that they successfully guide reviewers towards providing more diverse product information in reviews while maintaining high reviewer engagement. We contribute to research and practice by providing prescriptive design knowledge on dynamic review templates.