A Study on Optimal Frequency and Duration of PRP in Androgenic Alopecia

June 2024 in “ Saudi Journal of Medicine ”

Maruna Yesmeen

platelet-rich plasma androgenic alopecia hair diameter hair density AGA Grades III-VII PRP

Studysummary This study found that platelet-rich plasma therapy significantly increased hair diameter and density in male androgenetic alopecia patients over six months, particularly in those with AGA durations up to five years. Our plain-language summary of this paper — not a Tressless recommendation.

A 6-month pilot study on 30 male participants with AGA Grades III-VII found that PRP therapy significantly increased hair diameter and density. Hair diameter rose from 0.055 mm to 0.075 mm (39.85% improvement), and hair density increased from 6.13 to 8.43 hairs per 10 mm² (39.73% improvement). Grade 5 showed the highest diameter increase, and Grade 4A had the highest density increase. Patients with alopecia durations up to five years experienced the most significant improvements. The study concludes that PRP therapy is effective across all AGA grades and durations, warranting further research to establish it as a standard treatment.

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Research cited in this study

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research Enhanced Effect of Platelet-Rich Plasma Containing a New Carrier on Hair Growth

166 citations , August 2011 in “Dermatologic Surgery”

This study found that PRP combined with dalteparin and protamine microparticles may enhance hair growth by increasing hair thickness compared to PRP alone.

research Autologous Platelet Rich Plasma (PRP): What Do We Know? Important Concepts Relevant to Hair Restoration Surgery

19 citations , January 2010 in “Hair transplant forum international”

This abstract describes the components found in the alpha and dense granules of platelets, but it provides no new research findings.