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.
January 2026 in “Journal of Hard Tissue Biology” Red LED light boosts cell activity and growth, aiding wound healing and blood vessel repair.
December 2025 in “Journal of lasers in medical sciences” LED therapy speeds up recovery and reduces swelling and bruising after rhinoplasty.
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.
13 citations
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October 2015 in “Journal of the European Academy of Dermatology and Venereology” The document concludes that early recognition and appropriate treatment of red scalp, red ear, and red scrotum syndromes can lead to remission.
June 2024 in “Skin Research and Technology” Red fluorescence in AGA scalps is linked to different microbes.
March 2025 in “Egyptian Journal of Animal Health” Zinc deficiency causes parakeratosis in buffalo calves, and supplementation improves symptoms.
520 citations
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January 2017 in “AIMS biophysics” Photobiomodulation therapy using red and near-infrared light can reduce inflammation and aid in healing various conditions.
64 citations
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June 2020 in “PLoS ONE” Red light boosts beneficial compounds in Eclipta alba cultures.
41 citations
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October 2024 in “Nature Communications” A new wearable LED device helps heal chronic infected wounds at home.
21 citations
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May 2022 in “Frontiers in Cell and Developmental Biology” Hair growth and health are influenced by factors like age, environment, and nutrition, and are controlled by various molecular pathways. Red light can promote hair growth, and understanding these processes can help treat hair-related diseases.
19 citations
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December 2011 in “PubMed” Inflammation and immunity play a key role in androgenetic alopecia, with better treatment outcomes in certain immune-positive cases.
14 citations
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November 2022 in “Archives of Dermatological Research” The green-light LED microneedle patch effectively promotes hair growth.
3 citations
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April 2022 in “Dermatologic Surgery” Light therapy with various colors helps treat hair loss.
3 citations
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November 2021 in “Journal of The American Academy of Dermatology” Androgenetic alopecia, a genetic disorder affecting up to 50% of adults, is caused by an excessive response to androgens leading to hair follicle shrinkage. Treatments include FDA-approved drugs, other therapies like low-dose oral minoxidil, and hair transplantation.
2 citations
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November 2025 in “Healthcare” Combining a 675 nm laser with isotretinoin improves acne treatment results.
2 citations
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May 2023 in “Photobiomodulation, photomedicine, and laser surgery” Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.
2 citations
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August 2021 in “Photodiagnosis and Photodynamic Therapy” Using 5-aminolevulinic acid photodynamic therapy for hair loss didn't increase hair growth but slightly reduced scalp oiliness, and it was safe with mild side effects.
1 citations
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July 2023 in “Journal of Biophotonics” Red light at 8 mW/cm2 most effectively promotes hair cell growth and affects key growth pathways, especially in cells treated with a hair loss-related hormone.
1 citations
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June 2025 in “British Journal of Dermatology” Smartwatch light therapy may help regrow hair in alopecia areata.
1 citations
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March 2024 in “International Journal of Dermatology” CO2 laser-associated PDT effectively treated therapy-resistant folliculitis decalvans.
1 citations
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May 2016 in “Current Opinion in Pediatrics” Children's hair loss can be caused by various factors and should be treated with appropriate, age-specific methods and psychological support.
Red light exposure slows aging in mice by improving fat metabolism.
January 2026 in “American Journal of Medical and Clinical Research & Reviews” Different wavelengths of LED light are needed to treat different types of hair loss effectively.
December 2024 in “Journal of Biophotonics” Dual wavelength LEDs may help reduce hair loss by lowering DHT levels.
May 2023 in “Brazilian Journal of Animal and Environmental Research” Photobiomodulation effectively treats hair loss in dogs with black hair follicular dysplasia.
Phototherapy with red or blue light can safely improve hair growth and scalp health in androgenetic alopecia.
December 2018 in “Zenodo (CERN European Organization for Nuclear Research)” Low-level laser therapy may help hair growth, but more research is needed.
May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.