PROBLEM TO BE SOLVED: To provide a surface-treated powder that gives a moderate slip characteristic and a soft touch and is excellent in a moist feeling and adhesion to the skin, and a cosmetic that gives a soft touch and adhesion at coating and is finished smooth and uniform free from powdery impression and is excellent in makeup sustainability.SOLUTION: The surface-treated powder is obtained by covering 100 pts.mass of a powder with 0.1 to 20 pts.mass of crosslinked polyether-modified silicone and/or crosslinked polyglycerine-modified silicone dispersed in a dispersing medium containing water. The cosmetic contains the powder.COPYRIGHT: (C)2013,JPO&INPIT【課題】適度な滑り性と柔らかい感触を有し、しっとり感・肌への付着性に優れた表面処理粉体、及び塗布時の柔らかな感触と付着性を有し、粉っぽさがなく、滑らかで均一な仕上がりで、化粧もちに優れた化粧料を提供する。【解決手段】水を含む分散媒中に分散させた、架橋型ポリエーテル変性シリコーン及び/又は架橋型ポリグリセリン変性シリコーン0.1~20質量部で、粉体100質量部を被覆処理して得られる表面処理粉体、及び該表面処理粉体を含有する化粧料。【選択図】なし