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GlossaryLow Level Laser Therapy

uses low-intensity light to stimulate cellular function and healing

Low Level Laser Therapy (LLLT), also known as Photobiomodulation, is a treatment that uses low-intensity lasers or light-emitting diodes (LEDs) to stimulate cellular function. It is commonly used to promote hair growth in cases of alopecia, reduce inflammation, and accelerate tissue repair and healing. The therapy works by emitting specific wavelengths of light that penetrate the skin and are absorbed by cells, enhancing their energy production and promoting regeneration.

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research Low-level Laser Therapy with Novel Array of Light Source and Individualized Program for Treatment of Androgenetic Alopecia: A 16-week, Randomized, Double-blind, Sham Device-controlled Study

1 citations , December 2020 in “Medical lasers”

The laser therapy device effectively increased hair growth in people with androgenetic alopecia.

Comparative Efficacy and Safety of Low-Level Laser Therapy and Topical Minoxidil Combination vs. Topical Minoxidil Monotherapy in Androgenetic Alopecia Management: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

research Comparative efficacy and safety of low-level laser therapy and topical Minoxidil combination vs. topical Minoxidil monotherapy in androgenetic alopecia management: a systematic review and meta-analysis of randomized controlled trials

August 2025 in “Lasers in Medical Science”

Combining laser therapy with minoxidil improves hair growth and satisfaction without extra side effects.

research Does low-energy fractional carbon dioxide laser therapy improve hair regrowth in female-pattern hair loss?

September 2024 in “Egyptian Journal of Dermatology and Venerology”

Low-energy fractional CO2 laser therapy significantly improves hair regrowth in women with female-pattern hair loss.

research Alopecia areata: Impressive results using low-level laser therapy

June 2022 in “World Journal Of Advanced Research and Reviews”

Low-level laser therapy can significantly regrow hair in alopecia areata.

research Trichogenic effect of low level laser therapy combined with platelet-rich plasma for the management of androgenetic alopecia

April 2022 in “International Journal of Health Sciences (IJHS)”

Combining laser therapy with platelet-rich plasma improves hair growth in people with hair loss.

research Combined Low Laser Light Phototherapy and Growth Factor Hair Formulation Infiltration Therapy in Androgenetic Alopecia (AGA Combo Treatment)

January 2019 in “Journal of clinical and cosmetic dermatology”

Combining laser light therapy and growth factor treatment improves hair growth in people with hair loss.

research Combination of Low-Level Laser Therapy and Autologous Exosome Therapy in Hair Growth; Case Series

July 2024 in “Scholars Journal of Medical Case Reports”

Combining low-level laser therapy and exosome therapy promotes hair growth.

The Nuts and Bolts of Low-Level Laser Therapy

research The Nuts and Bolts of Low-level Laser (Light) Therapy

1057 citations , November 2011 in “Annals of Biomedical Engineering”

Low-level Laser Therapy may help reduce inflammation, pain, and aid healing, but more research is needed to confirm its effectiveness and establish standard treatment guidelines.

research The Science of Light Biostimulation and Low Level Laser Therapy (LLLT)

5 citations , November 2014 in “Hair transplant forum international”

Low Level Laser Therapy can promote hair growth.

research Decade Long Survey of Low-level Laser Therapy/Photobiomodulation (LLLT/PBM) Therapy for Oral Mucositis Treatment

4 citations , September 2021 in “Medical Lasers”

Low-level laser therapy effectively prevents and treats oral mucositis.

Clinical Assessment of Anti-Inflammatory Activity of 940 Nanometer Low-Level Laser Therapy on Carrageenan-Induced Arthritis in the Temporomandibular Joint in Wistar Albino Rats

research Clinical Assessment of Anti-inflammatory Activity of 940 Nanometer Low Level laser Therapy on Carrageenan Induced Arthritis in Temporomandibular Joint in Wistar Albino Rats

4 citations , March 2019 in “Journal of Pure and Applied Microbiology”

A 940nm laser effectively reduces inflammation in rat joints.

End of Activity of Any Type of Active Welding by Low-Level Laser Therapy (LLLT) Specialized Method

research End of Activity of Any Type of Active Welding by Low Level Laser Therapy by Lllt (Eka) Specialized Method

June 2022

Low-level laser therapy is a safe, painless method that effectively treats acne and improves skin without post-treatment care.

research Low-level laser therapy in androgenetic alopecia: narrative review

March 2023 in “Medical lasers”

Low-level laser therapy is a safe and effective treatment for hair loss.

A Randomized Controlled Study on the Safety and Efficacy of a Combination of 678nm Helmet-Type Low-Level Laser Therapy and Topical Minoxidil 5% in the Treatment of Male Androgenetic Alopecia

research A Randomized Controlled, Single-Observer Blinded Study on the Safety and Efficacy of a Combination of 678nm Helmet-Type Low-level Laser Therapy and Topical Minoxidil 5% Versus Topical Minoxidil 5% Alone in the Treatment of Male Androgenetic Alopecia

April 2024 in “Journal of dermatology research reviews & reports”

Using a laser helmet with Minoxidil works better for male hair loss than Minoxidil alone, with no extra side effects.

research Low-Level Light/Laser Therapy Versus Photobiomodulation Therapy

433 citations , April 2015 in “Photomedicine and laser surgery”

Photobiomodulation Therapy (PBMT) is recommended as a more inclusive term and shows potential benefits in various treatments.

research Photobiomodulation or low‐level laser therapy

160 citations , December 2016 in “Journal of biophotonics”

Low-level laser therapy, now called photobiomodulation, is recognized for its broad medical applications and scientific backing.

research Evaluation of Efficacy of Low-Level Laser Therapy

64 citations , October 2020 in “Journal of lasers in medical sciences”

Low-level laser therapy shows promise but needs more research for improvement.

research Low level laser therapy and hair regrowth: an evidence-based review

60 citations , December 2015 in “Lasers in Medical Science”

Low-level laser therapy is safe and can increase hair growth for male and female pattern hair loss.

research Low-level laser therapy as a treatment for androgenetic alopecia

47 citations , April 2016 in “Lasers in Surgery and Medicine”

Low-level laser therapy may improve hair regrowth and thickness for androgenetic alopecia, but more research is needed.

Low-Level Laser Therapy for the Treatment of Androgenetic Alopecia in Thai Men and Women: A 24-Week, Randomized, Double-Blind, Sham Device-Controlled Trial

research Low-level laser therapy for the treatment of androgenetic alopecia in Thai men and women: a 24-week, randomized, double-blind, sham device-controlled trial

45 citations , December 2018 in “Lasers in Medical Science”

LLLT promotes hair growth and improves hair density safely in men and women.

research Use of low-level laser therapy as monotherapy or concomitant therapy for male and female Androgenetic alopecia

45 citations , January 2014 in “International Journal of Trichology”

Low-level laser therapy helps male and female hair loss alone or with other treatments.

research Low-level laser therapy for the treatment of androgenic alopecia: a review

41 citations , December 2017 in “Lasers in Medical Science”

Low-Level Laser Therapy (LLLT) is a safe and effective treatment for common hair loss, but more research is needed to find the best power and wavelength for treatment.

research Novel Approach to Treating Androgenetic Alopecia in Females With Photobiomodulation (Low-Level Laser Therapy)

33 citations , March 2017 in “Dermatologic Surgery”

Low-level laser therapy effectively treats female hair loss, increasing hair count by 51%.

research A Critical Assessment of the Evidence for Low-Level Laser Therapy in the Treatment of Hair Loss

32 citations , September 2016 in “Dermatologic Surgery”

The evidence for using Low-Level Laser Therapy for hair loss is limited and more thorough research is needed.

research Efficacy of low‐level laser therapy on hair regrowth in dogs with noninflammatory alopecia: a pilot study

22 citations , September 2014 in “Veterinary Dermatology”

Low-level laser therapy seems to help dogs with noninflammatory alopecia grow hair back.

Comparative Effectiveness of Low-Level Laser Therapy for Adult Androgenic Alopecia: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

research Comparative effectiveness of low-level laser therapy for adult androgenic alopecia: a system review and meta-analysis of randomized controlled trials

21 citations , January 2019 in “Lasers in Medical Science”

Low-level laser therapy significantly increases hair density in adults with hair loss, with low-frequency treatment being more effective.

A Randomized Blinded Retrospective Study: The Combined Use of Micro-Needling Technique, Low-Level Laser Therapy, and Autologous Non-Activated Platelet-Rich Plasma Improves Hair Re-Growth in Patients with Androgenic Alopecia

research A randomized blinded retrospective study: the combined use of micro-needling technique, low-level laser therapy and autologous non-activated platelet-rich plasma improves hair re-growth in patients with androgenic alopecia

20 citations , July 2020 in “Expert Opinion on Biological Therapy”

Using micro-needling, low-level laser therapy, and platelet-rich plasma together significantly improves hair growth in people with hair loss.