675-Nm Diode Laser as an Adjuvant Treatment for Telogen Effluvium: Case Series

April 2026 in “ Frontiers in Medicine ”

Angelica Ruiz Dueñas, Luis Enrique Sánchez Dueñas, Miroslaba Rodríguez Puente, Nicole Orendain Koch

675-nm diode laser telogen effluvium trichodynia pruritus pull test

Studysummary This study observed that 675-nm diode laser therapy may serve as a safe and possibly effective adjuvant treatment for telogen effluvium, showing improvements in hair pull test results, pruritus, and trichodynia among patients. However, controlled studies are needed to confirm its efficacy.

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Experience of Novelty Laser Therapy Emission with 675 nm Wavelength for the Treatment of Androgenetic Alopecia in Male and Female Patients: A Case Series Study

research Experience of Novelty Laser Therapy Emission with 675 nm Wavelength for the Treatment of Androgenetic Alopecia in Male and Female Patients: A Case Series Study

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In this study, 675 nm laser treatment significantly improved hair density and reduced miniaturization in both male and female patients with alopecia androgenetica, showing promising results without side effects after 10 sessions.

research The Efficacy and Safety of the Combination of Photobiomodulation Therapy and Pulsed Electromagnetic Field Therapy on Androgenetic Alopecia

November 2022 in “Journal of Cosmetic Dermatology”

In this study, combining photobiomodulation therapy and pulsed electromagnetic field therapy over 24 weeks significantly increased hair density in androgenetic alopecia patients compared to a sham device control, with minimal side effects reported.

Hair Growth Promoting Effects of 650 nm Red Light Stimulation on Human Hair Follicles and Study of Its Mechanisms via RNA Sequencing Transcriptome Analysis

research Hair Growth Promoting Effects of 650 nm Red Light Stimulation on Human Hair Follicles and Study of Its Mechanisms via RNA Sequencing Transcriptome Analysis

6 citations , January 2021 in “Annals of Dermatology”

This study found that 650-nm red light treatment promoted hair follicle proliferation and delayed the transition from anagen to catagen in ex vivo hair follicles from androgenetic alopecia patients, with RNA-seq analysis suggesting involvement of biological processes like metabolism and leukocyte migration.

research Proposed Mechanisms of Low-Level Light Therapy in the Treatment of Androgenetic Alopecia

8 citations , October 2020 in “Lasers in Medical Science”

This review suggests that low-level light therapy can promote hair growth in patients with androgenetic alopecia, but more research is needed to standardize treatment parameters and assess long-term safety and efficacy.

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”

In a 24-week randomized trial, this study found that the RAMACAP laser helmet significantly increased hair density and diameter in androgenetic alopecia patients compared to a sham device, although limitations included a small sample size and potential issues with the control used.

research Photodynamic and Photobiological Effects of Light-Emitting Diode Therapy in Dermatological Disease: An Update

62 citations , July 2018 in “Lasers in Medical Science”

In this review, the researchers highlight LED therapy as an emerging and safe treatment for skin inflammatory conditions, aging, and hair growth disorders, noting its integration into dermatological practice but emphasizing the need for more controlled studies to confirm its efficacy.

research The Growth of Human Scalp Hair Mediated by Visible Red Light Laser and LED Sources in Males

117 citations , 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.