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This review discusses the modest efficacy of home-use laser and light devices for conditions like hair removal and acne, noting limited evidence and a lack of robust trials.

Low-Level Laser Therapy can stimulate healing and cell function, potentially leading to wider medical use.

This study reported that four patients with lichen planopilaris showed dramatic improvement, including symptom reduction and hair regrowth, after treatment with low-level light therapy.

This review suggests that low-level light therapy can promote hair growth in patients with androgenetic alopecia, but more research is needed to standardize treatment parameters and assess long-term safety and efficacy.

This review discusses the diverse applications of low-level laser therapy in aesthetic dermatology, especially for managing alopecia, but notes that comprehensive literature on its effectiveness is lacking.

This study found that red light exposure significantly enhanced the growth, phytochemical content, and therapeutic potential of Eclipta alba callus cultures compared to other multispectral light exposures.

In this study, low-level light therapy using a new helmet-type device significantly increased hair density and thickness in patients with androgenetic alopecia, showing no adverse events or side effects, suggesting it may be a safe and effective treatment option for both sexes.

This study found that intense pulsed light treatment primarily targets pigmented structures in hair follicles and may damage dermal papilla cells at high energy levels, but stem cells are mostly spared.

This review discusses the potential of repeated low-level red-light therapy to inhibit myopia progression through metabolic effects, highlighting its molecular and cellular impact, but reports no new clinical results.

This review discusses home-use laser and light skin devices for various dermatological purposes and reports no new clinical findings; the authors highlight the need for dermatologists to evaluate these devices' clinical value.

This review concluded that near-infrared and red light photobiomodulation shows potential for certain ocular conditions like age-related macular degeneration and dry eye disease, but clinical evidence is still mixed and insufficient to establish it as a standard therapy.

This review discusses the potential mechanisms and evidence supporting low-level laser therapy for stimulating hair growth in men and women, while noting its safety and effectiveness but needing further study on specific parameters.

This review highlights the potential of near-infrared light therapy to improve metabolic, antioxidant, and cognitive functions without adverse effects, and supports its use for visual and neurological conditions through molecular and cellular mechanisms, as reported in this source.

This study reported that the new near-infrared LED device showed significant improvements in skin rejuvenation and a slight increase in hair growth, with further research recommended for broader validation.

This study found that a combination treatment of laser photobiomodulation and plasma jet therapy was effective in improving alopecia areata in a 38-year-old woman after 14 sessions over three months, as evidenced by comparative photo documentation.

LED light helps hair follicle cells grow and prevents them from dying by activating certain cell pathways.

LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.

This study observed that pooled analysis of LED caps increased hair density in patients with androgenetic alopecia compared to sham, achieving 28.5 more hairs per cm².

This review discusses the effects of photobiomodulation, particularly its potential to reduce inflammation in various conditions, but it does not report new clinical findings.

This review concludes that current clinical and preclinical evidence does not indicate oncologic safety concerns linked to photobiomodulation therapy for skin rejuvenation, including no clear evidence of increased cancer risk.

This study analyzed clinical and histological reports and concluded that blue light therapy is safe for human skin, with potential photoprotective effects against UV irradiation due to its impact on skin pigmentation mediated by Opsin-3.

This review discusses the therapeutic use of photobiomodulation for various skin conditions, highlighting its efficacy in accelerating tissue repair, reducing inflammation, and treating pigmentary disorders and other skin diseases, but it reports no new clinical results.

This review found that LED therapy, using light in specific wavelengths, may offer effective, non-invasive treatment options for various skin conditions, including acne, melasma, photoaging, and wound healing.

This narrative review explored how blue light therapy may offer therapeutic benefits for various skin disorders by affecting microbial activity and immune responses, promoting hair growth, and aiding skin rejuvenation and healing.

This study evaluated a novel hand-held low-level light therapy device for treating mild-to-moderate acne, finding it significantly reduced inflammatory lesions and moderate acne severity without severe adverse reactions, while also reducing Cutibacterium acnes viability in vitro.

This study observed that a combination of micro-needling and low-level light/laser therapy significantly increased hair density in patients with mild to moderate androgenic alopecia, showing an increase of 12 hairs/cm² after 16 weeks, compared to baseline.

In this study, periodic exposure to red light in aged mice led to increased histone acetylation and activated mitochondrial fatty acid oxidation, which collectively mitigated cellular aging by modulating metabolism, inflammation, and gene expression.

This review of existing literature reports that photobiomodulation shows high effectiveness and safety in treating dermatological conditions like acne, psoriasis, and alopecia, though standardized clinical trials are needed to further validate its therapeutic benefits.

This study presented a new wearable textile-based device with near-infrared OLEDs that significantly reduced cell aging markers and improved cell migration in vitro, suggesting it as a promising, non-invasive phototherapy option for hair follicle treatment and hair-loss management.

This study found that using an LED array with an 863 nm wavelength delayed tumor development and reduced systemic inflammatory cytokines in DMBA/TPA-induced mouse skin tumors, suggesting potential but limited benefits of light therapy.