This invention provides a titanium dioxide powder excellent in selective transparency function for red light while maintaining shielding capability, and a cosmetics which is formulated with the titanium oxide powder to thereby have covering capability for blotches, freckles and the likes, make the uneven such as pores on a skin be obscure and enable natural makeup.The present invention provides a titanium dioxide powder and cosmetic formulated with the same, the titanium oxide powder is obtained by burning a titanium oxide with needle-like protrusions on particle surface thereof at 500 to 800℃, and has an apparent average particle size of 100 to 500nm, an average crystallite diameter determined by X-ray differential analysis of 15 to 30nm, and a specific surface area of 10 to 30m2/g.本發明提供一種維持遮蔽力而且選擇性穿透紅色光功能優良的二氧化鈦粉末，以及提供一種化妝料，其係調配有該二氧化鈦粉末而具有色斑、雀斑等的遮蔽力，同時使毛孔等的皮膚凸凹現象變不起眼，妝容自然者。本發明之解決手段，係一種二氧化鈦粉末，以及調配有該二氧化鈦粉末之化妝料，前述二氧化鈦粉末係將在粒子表面有針狀突起的二氧化鈦於500至800℃中煅燒而可得到二氧化鈦粉末，其表觀平均粒徑是100至500nm，利用X射線繞射法所測定的平均微晶直徑是15至30nm，比表面積為10至30m2/g。
