PROBLEM TO BE SOLVED: To provide an aqueous manicure composition in which dispersion stability of pigment is excellent and multi-colorization is easy, and a manicure applicator using the same.SOLUTION: A manicure composition comprises mica, water, and calcium carbonate, with the content of mica, water, and calcium carbonate being 1-20 mass%, 35-75 mass%, and 4-25 mass%, respectively. There is also provided a manicure applicator with the manicure composition used as a coating.COPYRIGHT: (C)2015,JPO&INPIT【課題】顔料の分散安定性に優れるとともに多色化が容易な水性の美爪料組成物及びこれを用いた美爪料塗布具を提供する。【解決手段】マイカ、水、及び炭酸カルシウムを含有し、それぞれの含有量が1~20質量%、35~75質量%、及び4~25質量%であること、を特徴とする美爪料組成物及び、当該美爪料組成物を塗料として用いた美爪料塗布具。【選択図】なし