\" \" A doctor applies blood plasma using a microneedling procedure during a PRP (platelet rich plasma) vampire facial. Still, the latest trend in spa treatments may take the crown (for now) as the most bizarre way to tighten skin. At least a handful of spas around the globe are offering vampire facials, using clients' own blood. This is how it works: Treatment providers draw a vial of blood from a person's arm and then spin it through a centrifuge, which extracts the platelet rich plasma (PRP). Officials are concerned that folks who had vampire facials performed at one spa in that state may have been exposed to HIV and hepatitis.