Diesters that include one or more of a crylene and/or a fluorene moiety, and sunscreen compositions including a mixture of a photoactive compound and one or more of a diester that includes one or more of a crylene and/or a fluorene moiety are described herein. Also disclosed are methods for stabilizing a sunscreen composition, methods of stabilizing a dibenzoylmethane derivative, and methods for protecting human skin from ultraviolet radiation with one or more of a diester that includes one or more of a crylene and/or a fluorene moiety are described herein.