Vitae (VTR)

In its most basic sense, vitae is a term vampires use to refer to blood. More specifically, it is the source of a vampire's unlife and powers. The "blood" in a vampire's body is more than the admixture of plasma, platelets, hormones and whatnot which courses through the veins of mortals. When blood enters a vampire's body it is mystically transformed into vitae, giving it the power to form blood bonds, create childer, and infusing it with a power that is attractive to some other supernaturals.

Furthermore, vitae is almost always more "condensed", meaning that while vampires have the same amount of blood in their systems, they possess more points of vitae. The maximum amount of vitae in a vampire's body is determined by their Blood Potency.