PROBLEM TO BE SOLVED: To provide a composition which is suitable as an external preparation for skin such as cosmetics, has excellent dispersibility, and has an excellent action of suppressing adhesion of fine particles to the skin. A composition for suppressing adhesion of fine particles containing a clay mineral modified with an organic compound, wherein the molecular size of the organic compound is 150% or less of the charge-to-charge distance of the clay mineral. Stuff. [Selection diagram] Fig. 1【課題】化粧料などの皮膚外用剤として好適であり、分散性にも優れた、微小粒子の皮膚への付着抑制作用に優れた組成物の提供。【解決手段】有機化合物で修飾された粘土鉱物を含有する、微小粒子付着抑制用の組成物であって、前記有機化合物の分子サイズが前記粘土鉱物の電荷間距離の１５０％以下である、組成物。【選択図】図１
