April 2020 in “The Aesthetics” LED-LLLT helps heal wounds, reduce pain, and regrow hair using specific light wavelengths.
43 citations
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September 2017 in “Lasers in Surgery and Medicine” LED light therapy may help hair growth by activating certain cell pathways.
5 citations
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November 2014 in “Hair transplant forum international” Low Level Laser Therapy can promote hair growth.
January 2023 in “Dermatologic Therapy” A new hand-held light therapy device was found to be safe and effective for treating mild-to-moderate acne.
8 citations
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April 2024 in “Cureus” CO2 lasers are better for severe acne scars, while Er:YAG lasers are gentler with fewer side effects.
165 citations
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August 2013 in “Lasers in Surgery and Medicine” Low-Level Laser Therapy is effective and safe for hair growth with minimal side effects.
60 citations
,
November 2020 in “International Journal of Medical Sciences” NIR light therapy may effectively treat eye diseases and improve brain function without side effects.
25 citations
,
October 2022 in “Ophthalmic Research” Red light therapy temporarily increased blood flow in the eye but didn't change other eye structures.
18 citations
,
January 2023 in “Nano Research” Red OLED therapy significantly boosts hair growth.
13 citations
,
April 2016 in “Journal of Dermatology” 308-nm excimer light therapy helped over a third of treatment-resistant alopecia universalis patients regrow most of their hair.
9 citations
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November 2021 in “PubMed” FDA-approved low-level light/laser therapy devices can significantly increase hair density in people with pattern hair loss.
6 citations
,
November 2018 in “Photodiagnosis and Photodynamic Therapy” A wearable cap-like device using light therapy reduced scalp skin lesions by 71% and was painless.
5 citations
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October 2020 in “Lasers in Medical Science” Combination therapy works best for female hair loss, increasing density and thickness.
February 2025 in “Cosmetics” Blue light therapy is promising for skin and hair conditions but needs more research for widespread use.
December 2024 in “Dermatologic Surgery” Dual wavelength LED caps can safely increase hair density in androgenetic alopecia.
January 2024 in “Annals of Agricultural and Environmental Medicine” Red LED light therapy helps reduce hair loss and improves hair regrowth in long COVID patients.
September 2018 in “The Medical Journal of Cairo University/The Medical Journal of Cairo University” Polarized light therapy helps hair regrowth in alopecia areata patients.
January 2015 in “Our Dermatology Online” Intralesional triamcinolone is the most effective treatment for hair regrowth in alopecia areata patients.
January 2015 in “Przegla̧d dermatologiczny” 308 nm excimer light therapy may help hair regrowth in alopecia areata with delayed results and no serious side effects.
January 2015 in “Przegla̧d dermatologiczny” Intralesional triamcinolone is the most effective treatment for alopecia areata, followed by excimer light therapy, and then topical minoxidil. The scalp responds better to treatment than the beard area.
January 2012 in “Human health handbooks” Low-level light therapy is FDA-approved for male pattern hair loss, increases hair count and strength, and is considered safe for use.
Low-level light therapy may reduce hair loss and improve hair quality but it's unclear who benefits most.
25 citations
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February 2023 in “Aesthetic Surgery Journal” Photobiomodulation is safe for skin rejuvenation, even for those with a cancer history.
January 2026 in “Journal of Aesthetic Nursing” Combining PRP, light therapy, and microneedling can significantly regrow hair in severe alopecia cases.
April 2025 in “Journal of Applied Cosmetology” The combined therapy of microneedling and light therapy effectively and safely promotes hair regrowth in trichotillomania.
October 2024 in “Photodermatology Photoimmunology & Photomedicine” Red LED therapy is more effective than green LED for improving hair growth in androgenetic alopecia.
6 citations
,
September 2018 in “Journal of Dermatological Treatment” LLLT devices for hair loss need more research to define proper guidelines.
106 citations
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April 2013 in “Dermatologic Surgery” Low-level light therapy safely improves hair growth and thickness for androgenetic alopecia.
21 citations
,
August 2013 in “Journal of Dermatological Treatment” Low-level light therapy may help hair regrowth, but more research is needed.
14 citations
,
January 2018 in “Indian Journal of Dermatology, Venereology and Leprology” Adding low-level light therapy to minoxidil improves hair growth and patient satisfaction.