Effectiveness of low-level laser therapy in lichen planopilaris

The study, conducted on eight Caucasian patients with Lichen Planopilaris (LPP), found that low-level laser therapy (LLLT) could be effective in reducing symptoms and increasing hair thickness in patients with this scarring alopecia. Over six months, patients treated with LLLT showed a significant reduction in the Lichen Planopilaris Activity Index (LPPAI) score by a mean of 0.87 (p=0.012) and an increase in terminal hair thickness by 111.0 µm after three months (p=0.018) and 82.4 µm after six months (p=0.035). Despite these positive results, the study's conclusions are limited by its small sample size, the absence of a control group, and the lack of histological data.