The purpose of the present invention is to provide a powder for a cosmetic having, when compared to conventional powders for cosmetics, a better skin feel, and high functionality such as a UV blocking ability, and also to provide a cosmetic using the same. The cosmetic is a metal oxide conjugated highly-flat cellulose powder obtained by mechanically grinding a cellulosic material, a grinding aid, and a metal oxide, and combines the same.本發明目的為提供一種化妝料用粉體，其與以往提供的化妝料用粉體相比，具有更好的使用感、或UV阻斷能力等的高機能性；及使用其之化妝料。該化妝料係藉由對纖維素系物質、粉碎助劑、與金屬氧化物進行機械性粉碎處理所得到的金屬氧化物複合化高扁平纖維素粉體，以及摻合其之化妝料。
