A procedure where concentrated platelets from the patient’s own blood are injected into the scalp.
Platelet-rich plasma is prepared from a blood sample, processed to concentrate platelets, then injected into thinning scalp areas. Platelets release growth factors that may support follicle activity and tissue signalling. PRP has encouraging evidence in androgenetic alopecia, but results vary because preparation systems, platelet concentrations, injection schedules and maintenance plans are not standardised. It is usually positioned as an adjunct rather than a cure. Patients should ask how outcomes are measured, how many sessions are planned, what maintenance is expected, and whether conventional diagnosis and treatment have been addressed first.
Kaiser M et al. Treatment of Androgenetic Alopecia: Current Guidance and Unmet Needs, 2023 — https://doi.org/10.2147/CCID.S385861; Anastassakis K. Androgenetic Alopecia From A to Z, Vol. 3, Springer, 2023 — https://doi.org/10.1007/978-3-031-10613-2
