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This article reviews light-based hair removal devices for home use, highlighting safety issues and the need for consistent international regulations and guidelines for their manufacture and marketing.

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.

This review highlights the light microscopic features of various infectious and non-infectious hair conditions and reports no new clinical results.

This review found that topical immunotherapy and light/laser therapy may achieve over 50% hair regrowth efficacy in treating extensive alopecia areata in children, with no serious side effects observed.

This review highlights that laser and light treatments could serve as safe and effective alternatives to current therapies for alopecia areata, with the excimer laser showing positive results, though further randomized controlled trials are necessary to establish optimal treatment protocols.

This review reported that home-use laser and intense pulsed light devices effectively reduce hair with significant efficacy and safety, showing 80% hair reduction one year post-treatment, although results can vary for darker skin types and compared to professional devices.

This study found that postmortem root banding in hair is likely due to the degradation of the intermacrofibrillar matrix in the cortex, with no damage to the cuticle observed.

This study found that long-term use of a home-use LED device for neck skin rejuvenation significantly improved wrinkle appearance and skin biophysical parameters without affecting thyroid function or morphology after 16 weeks of daily 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.

The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.

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 systematic review found that low-level light/laser therapy showed a positive effect in treating male and female pattern hair loss without side effects, as reported by all analyzed randomized controlled trials.

This review discusses the applications and advantages of LED-based photobiomodulation therapy for dermatological and cosmetic purposes but highlights existing challenges and health concerns while exploring future perspectives.

Light and temperature affect the daily skin function rhythms in hairless rats, with temperature influencing water loss but not skin hydration.

This review suggests that paradoxical hair growth after light-based treatments is unlikely due to the devices themselves; instead, it may be linked to other factors such as inflammation in individuals with certain conditions.

This retrospective review of hair samples from pediatric patients indicated that microscopic hair examination might be a useful first-line investigation for diagnosing various genetic conditions.

In this study, a novel portable LED device significantly accelerated wound healing in rats, with faster wound closure, increased collagen deposition, and more microvessels at a higher radiation intensity, suggesting its potential for innovative wound management.

This study found that Piezo2 channels are primarily located on sensory axon membranes in mechanosensory end organs, supporting a model where mechanical stimuli activate Aβ RA-LTMR neurons via axon protrusions.

In this study, LED therapy for eyebrow loss in older females with frontal fibrosing alopecia significantly increased eyebrow hair count after 10 treatments and maintained improvement at 6 months, indicating it could be a promising and well-tolerated treatment option.

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 article reviews the growing trend of at-home laser and light devices for treating conditions like acne, hair removal, and psoriasis, emphasizing their popularity and the need for cautious use but reports no new clinical results.

In this study, researchers developed hyaluronic acid derivatives functionalized with nitric oxide photodonors for light-activated skin treatments, finding that the compounds released NO under blue light and enhanced keratinocyte proliferation and migration, suggesting potential for therapeutic use.

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.

In this study, researchers observed that dietary vitamin D intake and light exposure play a crucial role in vitamin D metabolism in mice, suggesting similar importance for human health in maintaining optimal vitamin D levels.

Isolated patchy heterochromia with pili annulati can occur without other health issues.

Laser and light therapies can help regrow hair but need more research for best results.

This review discusses the potential enhanced effectiveness of combining Eflornithine cream with laser or light-based systems for facial hair removal and emphasizes the need for safer and more satisfactory solutions.

This review discusses the mechanisms by which laser treatment affects hair structures and growth, highlighting its potential for permanent hair reduction and associated skin damage, but reports no new experimental results.

In this study, pediatric hair and scalp disorders were effectively diagnosed using trichoscopic and light microscopic examinations, demonstrating high agreement with clinical diagnoses and emphasizing their utility as reliable, non-invasive diagnostic tools in a hospital-based setting.