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  • Study Finds Red and...

Study Finds Red and Green LED Light Therapies Effective in Boosting Hair Growth for Androgenetic Alopecia

Written By : Medha Baranwal |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2024-10-31T20:00:13+05:30  |  Updated On 1 Nov 2024 1:22 PM IST
Study Finds Red and Green LED Light Therapies Effective in Boosting Hair Growth for Androgenetic Alopecia
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Thailand: A recent comparative study has shed light on the effectiveness of red and green LED light therapies in managing androgenetic alopecia (AGA), a common form of hair loss affecting millions worldwide.

The research published in Photodermatology, Photoimmunology, and Photomedicine revealed that red and green LED therapies significantly promoted hair growth, enhancing density and thickness over six months. Notably, red LED therapy showed greater improvements in certain metrics. As a result, both therapies offer safe and effective alternatives for managing androgenetic alopecia, broadening the range of available treatment options.

Androgenetic alopecia, often referred to as male or female pattern baldness, is characterized by progressive hair thinning and loss due to genetic and hormonal factors. While existing treatments such as minoxidil and finasteride have limitations in efficacy and potential side effects, low-level light therapy (LLLT) utilizing red or near-infrared light has emerged as a promising alternative. Recent animal studies indicate possible advantages of green LED light, although data on its effects in humans remain limited.

To address this knowledge gap, Jitlada Meephansan, Samitivej Sukhumvit Hospital, Bangkok Dusit Medical Services PLC, Bangkok, Thailand, and colleagues evaluated the impact of both light therapies on hair growth, density, and thickness in individuals experiencing this condition.

For this purpose, the researchers designed an innovative LED helmet that emitted red and green light on opposite halves of the frontal scalp, delivering an energy density of 40 J/cm² over a 20-minute session. The study employed clinical photography, physician evaluations on a 7-point scale, patient satisfaction surveys, and measurements of hair density and diameter. Data analysis utilized linear mixed-effects models, with significance determined.

The following were the key findings of the study:

Seventeen participants were involved in the study (47.1% male, 52.9% female), with an average age of 46.47 years.

After 6 months of treatment, participants showed significant improvements in various metrics.

Both red and green LED therapies notably increased:

• Hair diameter

• Non-vellus hair density

• Patient satisfaction scores

• Red LED therapy resulted in:

• A statistically significant decrease in vellus hair density.

• A greater increase in hair diameter compared to green LED therapy.

• Minimal adverse effects were reported, primarily consisting of:

• Tolerable scalp heat

• Mild redness of the scalp.

The findings showed that red and green LED light therapies deliver promising results for patients with androgenetic alopecia, with red LED therapy typically yielding more sustained positive effects.

"Incorporating red LED therapy into a comprehensive treatment plan is advisable for patients who can invest in it," the researchers concluded.

Reference:

Tantiyavarong, J., Charoensuksira, S., Meephansan, J., Hanvivattanakul, S., Rayanasukha, Y., Boonkoom, T., & Tantisantisom, K. (2024). Red and Green LED Light Therapy: A Comparative Study in Androgenetic Alopecia. Photodermatology, Photoimmunology & Photomedicine, 40(6), e13004. https://doi.org/10.1111/phpp.13004

Photodermatology Photoimmunology and Photomedicinelight therapyandrogenetic alopeciahair losshair thinningred LED therapygreen LED therapyhair growth
Source : Photodermatology, Photoimmunology and Photomedicine
Medha Baranwal
Medha Baranwal

    MSc. Biotechnology

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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