research Comparative efficacy and safety of platelet-rich plasma (PRP), injectable platelet-rich fibrin (i-PRF) and concentrated growth factors (CGF) for female pattern hair loss (FPHL): a prospective multicenter randomized clinical trial
This study concluded that in female pattern hair loss patients, CGF and i-PRF treatments were more effective than PRP in increasing target area hair count, with i-PRF having the lowest adverse event rate.

