A platelet-rich plasma (PRP) injection is a minimally invasive treatment that uses a patient’s own blood to help heal injuries and improve function. A medical professional draws your blood, spins it in a centrifuge to separate platelets from other blood components, and then injects the concentrated platelets into the targeted area. The platelets contain growth factors and cytokines that stimulate the natural healing process. It is used for treating muscle injuries, as well as skin rejuvenation.