PROBLEM TO BE SOLVED: To provide a cosmetic for keratin fibers which eliminates the need for coloring of used powder, and is excellent in the smoothness upon application, the goodness of the color development, the uniformity of a film upon application, the volume improvement effect, the persistence of makeup, and the like.SOLUTION: The cosmetic for keratin fibers contains a flat cellulose obtained by mechanically grinding a cellulosic material and a N-acylamino acid.COPYRIGHT: (C)2013,JPO&INPIT【課題】ケラチン繊維用化粧料であって、使用する粉体へ着色の必要がなく、塗布時の滑らかさ、発色の良さ、塗布時の膜の均一性、ボリュームアップ効果、化粧の持続性等に優れた化粧料を提供する。【解決手段】セルロース系物質と、N-アシルアミノ酸とを機械的に粉砕処理して得られる扁平状セルロースを配合したことを特徴とするケラチン繊維用化粧料。【選択図】図2