An oil-in-water makeup composition containing (A) from 1 to 40% by weight of a component selected from the group consisting of a carboxylic acid having from 23 to 100 carbon atoms, a salt form thereof, and mixtures thereof, (B) from 1 to 30% by weight on a solid basis of a resin emulsion, and (C) from 30 to 98% by weight of water. The makeup composition, when used as a mascara for eyelashes, causes good and long-lasting curling-up effect and volumizing effect on individual eyelashes.