Platelet-rich plasma, or PRP, is protein made up of blood, centrifuged in order to extract its red blood cells. Although utilized as a clinical tool for a range of medical treatments, it is also used cosmetically in plastic surgery, to speed up tissue healing and promote hair growth.

PRP is created by extracting a blood sample from the individual being treated and placed into a centrifuge or other rapidly spinning device, which separates the platelets from the blood’s other components. This resulting material is then injected into the patient, in the area requiring treatment. Main indications in dermatology for PRP are androgenic alopecia, wound healing, and skin rejuvenation. For preparation of PRP, various protocols are used, with an underlying principle of concentrating platelets to 3–5 times physiological levels, then injecting this concentrate in the tis-sue where healing is desired.