Platelet Rich Fibrin Versus Platelet Rich Plasma for Microneedling Treatment of Facial Photoaging

The present study was conducted for analyzing the efficacy and safety of platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) in photoaging therapy. Specific arms: 1. The investigators will compare the photoaging improvement of PRF and PRP treated face before and after treatment by two blinded investigators. 2. The investigators will evaluate the improvement of each parameter of photoaging by Visia system, dermoscope, and optical coherence tomography. 3. The investigators will evaluate the safety of the treatment of PRF and PRP. Each case will receive 3 sessions of injection therapies with one month interval (T0, T1, and T2). Each case will receive PRP therapy on one side of the face and PRF on the other side of face. The investigators will determine the treatment method for both sides of each case randomly by coin flapping before the study. The investigators will evaluate each case before each session of therapy (T0, T1, T2) as well as 1 (T3) and 3 months (T4) after final session of treatment.