This study found that low-level laser therapy significantly improved hair count and reduced hair loss in patients with alopecia areata of the scalp.
March 2010 in “European Urology Supplements”
October 2021 in “Research Square (Research Square)” In this study, a 532 nm laser at 15 J/cm² increased the proliferation and tenogenic differentiation of tendon-derived stem cells in rats, mediated by Nr4a1 up-regulation.
January 2018 in “Archives of dermatology and skin care” This systematic review found widespread support in existing literature for the effectiveness of low level laser therapy in promoting hair growth, but emphasized the need for larger case-controlled studies to confirm these results.
Low level laser or LED therapy combined with infiltrations may help hair growth.
January 2024 in “Brazilian Journal of Hair Health” Combining low-level laser therapy with topical corticosteroids effectively improved Lichen Planopilaris symptoms.
December 2022 in “Medical lasers” This study reviews the mechanism and potential treatment roles of low-level laser therapy for immune-mediated skin diseases, reporting no new clinical results.
33 citations
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March 2017 in “Dermatologic Surgery” In this clinical study, low-level laser therapy using the HANDI-DOME LASER device increased hair counts by 51% compared to controls, indicating its potential as a safe and effective treatment for androgenetic alopecia in women aged 18 to 60.
April 2018 in “International journal of nanotechnology and nanomedicine” In this double-blind, placebo-controlled study, researchers found that low-level laser therapy significantly improved the healing rate and reduced the area of pressure ulcers in patients compared to placebo, suggesting its effectiveness in managing ulcers resistant to conventional treatments.
July 1998 in “Proceedings of SPIE” This study found that Low Power Laser therapy may be an effective complementary treatment for scalp alopecia and crural ulcers, showing quicker and potentially better results than conventional treatments.
7 citations
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March 2024 in “Biomedical Engineering Letters” 10 citations
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October 2009 in “Photomedicine and laser surgery” 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.
February 2024 in “Institutional Repository of the Federal Technological University of Paraná (RIUT) (Federal University of Technology – Paraná)” This review examines the molecular effects of photobiomodulation therapy, particularly its influence on gene and protein expression related to inflammation and cell functions, but reports no new clinical results.
1 citations
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October 2022 in “Sci” This review discusses the use of helmet designs in integrative medicine and transcranial photobiomodulation, highlighting new developments and potential future advancements in sensor-controlled therapy helmets, but reports no new clinical results.
This study conducted a comparative analysis of platelet rich plasma and low level laser therapy for androgenetic alopecia but does not present new clinical findings.
165 citations
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August 2013 in “Lasers in Surgery and Medicine” 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.
65 citations
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March 2016 in “Lasers in Medical Science” This review found that many low-level light therapy studies report beneficial effects but often fail to provide adequate measurement details, affecting the reliability and repeatability of the research.
15 citations
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June 2021 in “Medicina” This study found that combined intense pulsed light and low-level light therapy significantly improved ocular surface outcomes and quality of life for patients with meibomian gland dysfunction and dry eye disease.
2 citations
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June 2024 in “Skin Research and Technology” This study found that low-level laser stimulation activates the Wnt signaling pathway, promoting hair follicle stem cell regeneration and accelerating wound healing.
1 citations
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July 2024 in “Journal of lasers in medical sciences” This case study reports that treating a female patient with facial partial unilateral lentiginosis using a 532-nm Nd:YAG fractional picosecond laser resulted in significant improvement in pigmentation without notable side effects, indicating it may be an effective and well-tolerated treatment option.
11 citations
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February 2020 in “Dermatology and therapy” 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.
15 citations
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May 2017 in “Lasers in Medical Science” This study found that low-level laser treatment may promote hair regrowth in mice by activating the Wnt10b/ß-catenin pathway and inducing the anagen phase of hair follicles.
3 citations
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September 2015 in “Plastic and reconstructive surgery/PSEF CD journals” Low-dose pulsed electric fields in a rat model shifted hair follicles from resting to active growth, with voltage as the most influential factor.
117 citations
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September 2013 in “Lasers in Surgery and Medicine” This study found that low level laser therapy at 655 nm significantly increased hair counts in males with androgenetic alopecia.
January 2018 in “Clinical approaches and procedures in cosmetic dermatology” This review discusses clinical studies on low-level laser therapy for various types of hair loss and suggests it may be promising for those unresponsive to conventional treatments, but reports no new clinical results.
July 2024 in “Scholars Journal of Medical Case Reports” This study highlights examples of successful hair growth using combined laser therapy and autologous exosome therapy, suggesting a synergistic effect that may enhance beauty treatments and other therapeutic applications.
81 citations
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August 2014 in “Lasers in Surgery and Medicine” This study found that low-level laser therapy significantly increased hair growth in women with androgenic alopecia, achieving a 37% greater increase in hair counts compared to placebo.
6 citations
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November 2018 in “Photodiagnosis and Photodynamic Therapy” 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.
April 2026 in “International Journal of Clinical Case Reports and Reviews” In this preclinical study, researchers developed and evaluated a new non-invasive laser system designed for personalized medical use, showing its potential for chronic disease management and adjunctive fat reduction by offering enhanced treatment precision and adaptability over existing devices.
26 citations
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April 1999 in “Dermatologic Clinics” This article reviews the basics of hair follicle biology, laser/tissue interactions, and hirsutism and hypertrichosis causes, discussing the long-pulsed alexandrite laser's role in hair reduction without reporting new clinical results.