Regenerative Biotechnologies in Plastic Surgery: A Multicentric, Retrospective, Case-Series Study on the Use of Microneedling with Low-Level Light/Laser Therapy as a Hair Growth Boost in Patients Affected by Androgenetic Alopecia

December 2021 in “ Applied sciences ”

Pietro Gentile, Simone Garcovich, Soo-Jung Lee, Sangbum Han

micro-needling low-level light therapy low-level laser therapy hair regrowth androgenetic alopecia hair density MND LLLT AGA

TLDR Micro-needling with low-level light therapy effectively increases hair growth in people with mild to moderate hair loss.

This multicentric, retrospective case-series study evaluated the effectiveness of micro-needling combined with low-level light/laser therapy (LLLT) for hair regrowth in 20 patients with androgenetic alopecia (AGA) over 16 weeks. The study found a significant increase in hair density, with an average rise of 12 ± 2 hairs/cm² in the treated area, from 47 ± 2 hairs/cm² at baseline to 59 ± 2 hairs/cm² after 16 weeks (p = 0.0238). Both objective and subjective assessments indicated positive outcomes, demonstrating that MND with LLLT is an effective treatment for mild to moderate AGA.

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