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December 2021 in “Dermatologic Therapy” This study found that in the treatment of androgenetic alopecia, combination therapies involving topical and systemic treatments with adjunctive therapy demonstrated the highest efficacy in improving hair density and diameter compared to placebo, based on a network meta-analysis of 49 randomized controlled trials.
May 2024 in “Journal of cosmetic dermatology” The study concluded that dutasteride 0.5 mg daily for 24 weeks was the most effective monotherapy for increasing hair density in men with androgenetic alopecia, compared to other interventions.
This research aims to evaluate 6-month changes in total and terminal hair density, with data quality assessed using Cochrane risk of bias tools, but does not report specific study results yet.
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August 2022 in “Journal of Drugs in Dermatology” This study found that the efficacy of platelet-rich plasma in treating androgenetic alopecia is higher with increased frequency of sessions, chemically-activated PRP, double centrifugation, and whole-head application, among younger and female patients.
October 2025 in “Journal of Cosmetic Dermatology” This study found that conventional treatments like oral dutasteride and topical/oral minoxidil are effective for male androgenetic alopecia, and it provides guidance on the relative efficacy of some alternative treatments, such as topical melatonin and rosemary oil, compared to these conventional therapies.