PRP contains growth factors that promote tissue repair. The authors conducted a meta-analysis comparing PRP treatment to a control group. However, there are concerns about the lack of standardized protocols and specific details about PRP preparation. Factors such as platelet counts, leukocyte concentration, and the use of activated or non-activated platelets can affect treatment outcomes. Further analysis is needed to establish more reliable conclusions about the effectiveness of PRP for androgenic alopecia. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these evidence-based medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
Keywords: Androgenic alopecia; Meta-analysis; Platelet-rich plasma; Regenerative medicine; Skin; Soft tissue.
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