An object is to provide a new cosmetic composition that can prevent or reduce skin "photoaging" caused by blue light. As a solution, a cosmetic composition is provided, which is characterized in that it contains: (a) one or more types of alkyl phosphate esters selected from alkyl phosphate esters having alkyl groups with 12 to 36 carbon atoms; (b) one or more types of substances selected from basic amino acids and organic bases; (c) water; and (d) lutein.