The Platelet Rich Plasma (PRP) commonly used in hair restoration is derived from the patient’s own blood. To obtain PRP, a patient’s blood is spun in a centrifuge to separate the solid from liquid components and platelet activators, such as thrombin, calcium chloride and sometimes collagen, are added. The separated solid portion of the blood is PRP (platelet rich plasma). There are commercially available systems for PRP treatment.
PRP is then placed into a syringe and reintroduced into the treatment site i.e., either the surgical site or an area of hair loss. PRP be can sprayed onto a recipient area during and after a hair transplant, laid into the donor incision, or injected directly into a balding scalp. Prior to injecting PRP, doctors often create a ring-block of local anesthesia with 1% lidocaine. For more effectiveness the treatment must be continued for the stipulated time.