This technique involves an injection of your own plasma under the skin (hence the vampire facial!). This can be used for skin rejuvenation and treatment of hair loss. Blood contains plasma and cells (red cells, white cells and platelets). The platelets are essential in clotting blood but also contain multiple proteins called growth factors which are important for healing. PRP is your own plasma with many more platelets than what is typically found in blood. This means that the concentration of growth factors can be 5 to 10 times richer. The plasma for injection is created by first taking a sample of your blood and then passing it through a process called centrifugation, where the plasma is separated from the red and white blood cells.