Clinical Efficacy and Mechanisms of Microneedling Alone or Combined With Drugs in the Treatment of Androgenetic Alopecia

Microneedling exerts therapeutic effects by regulating hair growth signaling pathways and promoting transdermal drug delivery. It is effective for mild AGA when used alone, and achieves more significant efficacy in moderate to severe AGA when combined with drugs, with high safety. Thus, it is worthy of clinical promotion. However, this study has limitations such as a small sample size and male-only participants, and further multi-center, large-sample RCTs are needed for validation.