PROBLEM TO BE SOLVED: To provide an ultraviolet shielding agent which has high ultraviolet shielding effect, has excellent transparency, can be prescribed by mixing an inorganic ultraviolet shielding agent and an organic ultraviolet absorber, and can be blended into a water-in-oil type (O/W type) cosmetic as well as an oil-in-water type (W/O) type cosmetic, an ultraviolet shielding agent-containing dispersion containing the ultraviolet shielding agent, and a cosmetic.SOLUTION: The ultraviolet shielding agent contains: the first resin particles including an organic ultraviolet absorber and having the average particle diameter of 0.1 to 1 μm and the second resin particles including metal oxide with ultraviolet shielding power and having the average particle diameter of 0.1 to 1 μm, and in which the organic ultraviolet absorber and the metal oxide are included in the range of (1:45) to (3:1).COPYRIGHT: (C)2013,JPO&INPIT【課題】紫外線遮蔽効果が高く、透明性に優れ、無機系紫外線遮蔽剤と有機系紫外線吸収剤とを混合して処方することが可能であり、油中水型(W/O型)は勿論のこと、水中油型(O/W型)の化粧料への配合が可能である、紫外線遮蔽剤とそれを含有する紫外線遮蔽剤含有分散液及び化粧料を提供する。【解決手段】本発明の紫外線遮蔽剤は、有機系紫外線吸収剤を含有し平均粒径が0.1μm以上かつ1μm以下である第1の樹脂粒子と、紫外線遮蔽能を有する金属酸化物を含有し平均粒径が0.1μm以上かつ1μm以下である第2の樹脂粒子とを含む紫外線遮蔽剤であって、有機系紫外線吸収剤と金属酸化物が、質量比で1:45~3:1の範囲で含有されてなる。【選択図】なし
