25 citations
,
October 2022 in “Ophthalmic Research” In this study, 650 nm low-level red light therapy may cause a short-term transient increase in retinal fovea perfusion density in children, with no lasting effects observed at 1 hour post-treatment.
March 2024 in “GSC Advanced Research and Reviews” This study observed that exposure to different wavelengths of light affects opsin and clock gene responses in skin cells, suggesting potential therapeutic approaches using photobiomodulation for dermatological conditions like psoriasis and wound healing.
3 citations
,
May 1979 in “PubMed”
21 citations
,
September 2013 in “Journal of circadian rhythms” In this study, heavy nighttime physical exercise delayed the circadian phase of clock gene expression by 2 to 4 hours in a professional fighter, suggesting potential implications for managing circadian disorders.
October 1997 in “Dermatologic Surgery” The Epilight Hair Removal System is effective for temporary hair removal with few side effects, but more research is needed to confirm its safety and long-term results.
25 citations
,
February 1977 in “American Journal of Veterinary Research” This study concluded that exposing anestrous brood mares to a 16-hour photoperiod in early December led to endocrinologically normal estrous cycles starting within two months, enabling earlier breeding and foaling.
65 citations
,
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.
134 citations
,
September 2008 in “Lasers in surgery and medicine” This study found that low fluence photoepilation with intense pulsed light targets the pigmented area of hair follicles, causing temporary hair loss by inducing a catagen-like state without severe follicle damage.
January 2005 in “Cosmetic Surgery Times” This study reports that the Luce LDS 100 infrared light therapy shows positive hair growth results after one year in men and women with androgenetic alopecia.
December 2025 in “Lasers in Surgery and Medicine” February 2005 in “Journal of the American Academy of Dermatology”
60 citations
,
November 2020 in “International Journal of Medical Sciences” 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.
15 citations
,
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.
This study introduced a new laser-only method called EKA for acne treatment, which is reported to be safe, painless, and heat-free, showing promising results for both acne and scar repair in initial sessions without combining with LED light.
July 2025 in “Journal of Investigative Dermatology” October 2013 in “CRC Press eBooks” This review outlines current and potential cosmetic and dermatological applications of low-level light therapy, like photorejuvenation and hair regrowth, and reports no new clinical findings.
March 2026 in “SKIN The Journal of Cutaneous Medicine” This study demonstrated that litifilimab significantly reduced disease activity in cutaneous lupus erythematosus by Week 16, with improvements most notable in sunlight-exposed skin areas.
October 2014 in “Tesis Doctorals en Xarxa (Consorci de Serveis Universitaris de Catalunya)” This research discusses the time-of-day-dependent role of protein-complex assembly in the differentiation of human epidermal stem cells and highlights the context-dependent functioning of human protein complexes.
April 2023 in “Tropical Animal Health and Production” Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.
6 citations
,
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.
May 2019 in “Case medical research”
50 citations
,
January 2018 in “Acta physiologica” This study found that four days of simulated night shift work in healthy adults reduced insulin sensitivity, suggesting a potential increased risk of type 2 diabetes.
November 2025 in “SKIN The Journal of Cutaneous Medicine” This review highlights the potential benefits of low-level light therapy for treating various alopecias, with reported improvements in hair density and count, especially when combined with minoxidil or finasteride, but it offers no new clinical results.
July 2026 in “British Journal of Dermatology” This study observed that administering low-dose oral minoxidil during the daytime led to significantly greater hair density improvements in androgenetic alopecia patients compared to nighttime dosing. This suggests that circadian variations in hair follicle biology could be important for optimizing treatment outcomes.
433 citations
,
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.
December 2024 in “Dermatologic Surgery” This paper from dermatology experts discusses their affiliations and declares no significant commercial interests, but it reports no research findings.
July 2026 in “Journal of Investigative Dermatology”