To provide a titanium oxide powder, and a dispersion and a cosmetic using it with which bluish feature specific to the titanium oxide powder may be reduced while providing concealing property and transparency when it is applied to skin and squeakiness may be suppressed.SOLUTION: The titanium oxide powder of the present invention is a titanium oxide powder having a BET specific surface area of 5 m/g or more and 15 m/g or less. The titanium oxide powder comprises octahedron particles having an average value of the maximum value of line segments connecting two vertices facing each other is 300 nm or more and 1000 nm or less. A value (D90/D10) is 1 or more and 3 or less, which is obtained by dividing a value (D90) of a case where cumulative number percentage of the maximum value of the line segments connecting the two vertices facing each other is 90% with a value (D10) of a case where the cumulative number percentage is 10%.SELECTED DRAWING: None【課題】肌に塗布した場合に、隠蔽力と透明感を有しながら、酸化チタン粒子特有の青白さを低減でき、かつキシミ感が抑制された、酸化チタン粉体、並びに、それを用いた分散液および化粧料を提供する。【解決手段】本発明の酸化チタン粉体は、ＢＥＴ比表面積が５ｍ２／ｇ以上かつ１５ｍ２／ｇ以下である酸化チタン粉体であって、前記酸化チタン粉体は、向かい合う２個の頂点を結ぶ線分の最大値の平均値が３００ｎｍ以上かつ１０００ｎｍ以下である八面体状粒子を含み、前記向かい合う２個の頂点を結ぶ線分の最大値の、累積個数百分率が９０％の場合の値（Ｄ９０）を、累積個数百分率が１０％の場合の値（Ｄ１０）で除した値（Ｄ９０／Ｄ１０）が、１以上かつ３以下である。【選択図】なし
