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This study found that coloring white facial hair is an effective and feasible adjunct to intense pulsed light therapy for hair removal, with similar efficacy between using black eyeliner and black hair dye.

This review discusses recent advancements in light-based bioelectronic devices for health monitoring and therapy, summarizing key technologies and highlighting challenges and opportunities without reporting new clinical results.

In this study, a square pulse, low-fluence IPL device used at home significantly reduced terminal hair count by 87% six months post-treatment, with evidence of hair miniaturization similar to professional laser treatments.

This study found that intense pulsed light treatment achieved a mean of 85% hair reduction in two patients with faun tail, although local anesthesia may be needed due to severe pain associated with neurological abnormalities.

In this study, researchers developed a new photoactivatable Cre recombinase mouse model, DiLiCre, which allows precise light-induced genetic modifications and cell tracing, demonstrating its effectiveness for advancing biological and biomedical research.

This study found that FDA-approved low-level light/laser therapy devices significantly increased hair density in individuals with pattern hair loss compared to sham devices.

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.

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 IPL hair reduction led to significant decreases in hair count and thickness by promoting hair follicle miniaturization, increased telogen phase, and reduced cell proliferation.

Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.

This study found that using a wearable low-level light therapy device for photodynamic therapy significantly reduced actinic keratosis lesions and improved quality of life in patients with AK of the scalp.

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 study found that combination therapy with LLLT and 5% minoxidil improved hair diameter and density more effectively than each treatment alone in women with female pattern hair loss.

In this study, bright light exposure during the daytime did not significantly affect clock gene expression in humans, although Rev-erb-ß expression appeared stronger under bright light compared to dim light.

This study found that combining topical finasteride with IPL + RF hair removal significantly reduced unwanted facial hair in women after six months compared to placebo.

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.

This study observed that adding low-level light therapy with the GentleWaves® device to Minoxidil significantly boosted hair regrowth in men with androgenetic alopecia by reducing scalp inflammation.

This study found that UVA blocker-containing sunscreens instantly reduced follicular fluorescence due to porphyrins in facial skin, with the effect lasting for a few hours, influenced by sunscreen amount and formulation.

In this study, IPL treatment for six months significantly reduced hair growth in females with faun tail nevus linked to spinal abnormalities.

This study suggests that pulsed wave photobiomodulation could be a promising treatment for androgenetic alopecia by enhancing dermal papilla cell function through specific light parameters, particularly frequency.

This study concluded that intense pulsed light treatment effectively thinned hair to achieve a natural look after hairline correction surgery in East Asian women with naturally thick hair.

This review discusses low-level laser or light devices as an alternative treatment for androgenetic alopecia and highlights the need for further research to compare their efficacy with existing therapies.

In this study, maternal exposure to constant light significantly altered the neonatal skin structure in rabbits, associated with reduced maternal melatonin levels.

This review indicates that low-level laser therapy may stimulate hair growth in both men and women with androgenetic alopecia, showing similar efficacy to minoxidil in some studies, but requires more robust evidence.

This study found that low-fluence intense pulsed light promoted hair growth in C57BL/6 mice by inducing an earlier and prolonged anagen phase and activating the WNT/β-catenin pathway.

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 randomized trial found that diode laser achieved more favorable long-term hair removal outcomes but induced more discomfort and transient adverse effects compared to intense pulsed light in women with Fitzpatrick skin types I-IV.

This case series reports that home use of intense pulsed light devices may effectively reduce hair burden and prevent recurrence of pilonidal disease in patients unable to regularly attend clinic sessions.

This case report observed marked hair regrowth in a patient with refractory alopecia areata using a combination of platelet-rich plasma, low-level light therapy, and microneedling alongside topical and oral agents.