The present invention relates to a cosmetic composition for eyelashes such as a mascara, comprising: at least one anionic surfactant including 2-amino-2-methyl-1,3-propanediol in combination with a C16-C24 fatty acid； and at least one film-forming polymer present in the form of particles dispersed in an aqueous phase, wherein the weight ratio of the amount of 2-amino-2-methyl-1,3-propanediol in combination with the C16-C24 fatty acid/the amount of the film forming polymer is 0.01 to 0.3, preferably 0.05 to 0.2, and more preferably 0.1 to 0.15.
