1057 citations
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November 2011 in “Annals of Biomedical Engineering” This review discusses the applications of low level laser therapy (LLLT) in wound healing, pain reduction, and treating various conditions, but reports no new clinical results; the authors highlight the need for randomized controlled trials for serious diseases.
5 citations
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November 2014 in “Hair transplant forum international” This article introduces a series on low level laser light therapy, focusing on its science, regulatory aspects, and controlled trial methodologies, but reports no new clinical results.
6 citations
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September 2018 in “Journal of Dermatological Treatment” This review examines the FDA's 510(k) approval process for low-level laser therapy devices used in treating androgenetic alopecia and reports no new clinical findings.
433 citations
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April 2015 in “Photomedicine and laser surgery” This editorial discusses the terminology and distinctions between Low-Level Light/Laser Therapy and Photobiomodulation Therapy but reports no new clinical findings.
17 citations
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October 2021 in “Journal of Cosmetic Dermatology” 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.
8 citations
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September 2021 in “Facial plastic surgery & aesthetic medicine” 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.
4 citations
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December 2021 in “Applied sciences” 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.
2 citations
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September 2014 in “PubMed” 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.
June 2011 in “CRC Press eBooks” Low-Level Laser Therapy can stimulate healing and cell function, potentially leading to wider medical use.
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.
January 2019 in “Journal of clinical and cosmetic dermatology” This article discusses the potential of combining growth factor therapy with LLLT LED therapy for hair regrowth in androgenetic alopecia, but it does not report new clinical results.
9 citations
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November 2021 in “PubMed” 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.
1 citations
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December 2020 in “Medical lasers” The laser therapy device effectively increased hair growth in people with androgenetic alopecia.
March 2023 in “Medical lasers” Low-level laser therapy is a safe and effective treatment for hair loss.
August 2021 in “Journal of advances in medicine and medical research” In this study, both excimer light and low level light therapy were found to be safe and effective for treating alopecia areata, with excimer light showing better and more sustained improvement.
160 citations
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December 2016 in “Journal of biophotonics” This review discusses the evolution and potential of photobiomodulation therapy, highlighting its transition from skepticism to recognition in medical research; it reports no new experimental findings.
32 citations
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September 2016 in “Dermatologic Surgery” This review discusses the current evidence and highlights gaps in research needed for the wider acceptance of low-level laser therapy as a treatment for hair loss; no new clinical results are provided.
January 2023 in “Dermatologic Therapy” 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.
Low level laser or LED therapy combined with infiltrations may help hair growth.
This article reviews low-level light therapy for various types of hair loss and reports no new clinical results; the authors note its safety and advantages but lack data on individual treatment response.
54 citations
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November 2014 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” This study found that combining low-fluence Q-switched Nd: YAG laser and intense pulsed light led to faster and more effective melasma treatment compared to using the laser alone, though recurrence still occurred.
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.
December 2018 in “Zenodo (CERN European Organization for Nuclear Research)” This review of low-level laser therapy for patterned hair loss found that red-spectrum light may be effective for hair growth, but larger case-controlled studies are needed to further support this conclusion.
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.
2 citations
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January 2007 in “Journal of The American Academy of Dermatology” Red and infrared light therapy improves hair growth in balding patients.
January 2019 in “The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology” This study suggests that low level laser therapy may be effective for alopecia compared to placebo, but current evidence is limited and studies show a high risk of bias.
1 citations
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September 2019 Laser and light therapies can help regrow hair but need more research for best results.
October 2025 in “Dermatologica Sinica” This study's network meta-analysis reported that botulinum injection combined with red laser and topical minoxidil is most effective for increasing hair density in androgenetic alopecia when using low-level laser therapy.
November 2024 in “Health Science Reports” This systematic review found that light and laser therapies, including excimer and erbium-glass lasers, generally increase hair density and diameter in various types of alopecia, with particularly notable effects in androgenic alopecia but limited efficacy in telogen effluvium.
May 2023 in “Elsevier eBooks” This study found that low-level laser/light therapy is effective and safe for treating mild to moderate androgenetic alopecia in individuals with certain skin types, especially when combined with other treatments, although further research is needed to refine protocols and verify long-term outcomes.