From the point of view of Substratum theorists, “Bare Particular” is necessary concept for concrete Particulars or familiar things. In this view, a concrete particular is a set of properties and additional entities, which is called Substratum. These entities are subject and bearer of the properties. Moreover, the possibility of making them a complex in that set and justifies thing’s identity and individuality. This paper, after defining this concept, shows that the Bare Particular is an incomplete concept, if are not taken into consideration Aristotle and IslamicPhilosophers’s Forms. So we cannot use this concept to justify concrete particulars.