Photobiomodulation Therapy for Hair Loss: MOA and How I Employ It in My Multi-Modality Hair Loss Program

Dr. Rhonda Farrah discusses photobiomodulation (PBM) therapy, or low-level light therapy, for treating hair loss, particularly androgenetic alopecia. She explains the origins of PBM, highlighting its discovery in Hungary, leading to its FDA clearance in 2007. Dr. Farrah compares different light sources, such as light-emitting diodes (LEDs) and lasers, explaining their mechanisms. She notes recent findings suggesting that green light may be more effective than red light in promoting hair growth, sparking new research. Dr. Farrah emphasizes the significance of maintaining standard settings as per manufacturers' studies for optimal results, which have shown statistically significant improvements in hair counts. She reports findings from her team’s studies indicating varying responses across different demographics, including darker skin types. Importantly, she stresses compliance and realistic expectations from patients, noting that while there are benefits, results can take time. Furthermore, Dr. Farrah underscores the importance of patient education on the safety and efficacy of these devices, and the need for additional data on their application in darker skin types. Her approach combines PBM with other treatments, advocating for its use in a multi-modal strategy for hair restoration.