An object of the present disclosure is to investigate fluorescent substance being safe and having a high color developing property, and obtain an inorganic red fluorescent substance consisting of an element which exerts no bad influence upon human bodies.A cosmetic containing inorganic particles consisting of a compound represented by a general formula:MgxTiyO(x+2y+2z):Mn4+z wherein 1.5<;x<;2.5, 0.5<;y≤1.5, and 0.0001<;z<;0.1.