Low-level light therapy may reduce hair loss and improve hair quality but it's unclear who benefits most.
35 citations
,
December 2014 in “Lasers in surgery and medicine” Red light promotes hair growth by directly stimulating hair cells and improving cell communication.
11 citations
,
April 2021 in “Journal of Clinical Medicine” The LED device safely improves neck skin appearance without affecting thyroid function.
May 2019 in “Case medical research”
June 2022 in “Journal of Dermatology Research” Using 448-kHz Capacitive-Resistive Electrothermal Therapy can help increase hair density and prevent hair loss in women.
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.
10 citations
,
November 2019 in “Journal of Dermatological Treatment” Photobiomodulation helps hair growth safely in men and women, with laser devices working better than LED ones.
38 citations
,
January 2023 in “International Journal of Medical Sciences” Red-light therapy may slow myopia progression better than traditional treatments.
23 citations
,
July 2021 in “Life” Blue light can help treat skin conditions like eczema and acne without major side effects.
37 citations
,
January 2023 in “Ophthalmology and Therapy” Low-level red light therapy can shorten eye length in some myopic children.
45 citations
,
May 2019 in “Scientific Reports” Low color temperature light (1900 K) benefits health by promoting melatonin, protecting eyes, and aiding healing.
October 2022 in “Journal of ophthalmology” Light therapy may improve eye conditions by stimulating cell activity and increasing oxygen availability.
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 2016 in “프로그램북(구 초록집)” LED light promotes hair growth by stimulating cell proliferation and reducing cell death.
January 2026 in “National Science Review”
April 2024 in “Lasers in medical science” Near-infrared LED light improves skin rejuvenation and hair growth better than white LED light.
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.
33 citations
,
January 2017 in “Annals of Dermatology” LED light can help hair growth by activating specific cell pathways.
5 citations
,
January 2017 in “Skin appendage disorders” A man developed an allergic skin reaction from a therapy cap used for hair loss treatment.
May 2025 in “Journal of Photochemistry and Photobiology B Biology” Blue LED light improves hair treatments for Caucasian and Asian hair but not for African hair.
August 2022 in “Dermatologic Therapy” 2 citations
,
January 2003 in “Dermatologic surgery” The 800-nm pulsed diode laser is a safe and effective long-term treatment for trichostasis spinulosa in dark-skinned individuals.
23 citations
,
September 2011 in “Journal of Dermatological Science” Red LED light helps mouse hair grow by increasing growth factors from skin cells.
September 2021 in “Zenodo (CERN European Organization for Nuclear Research)” The new laser is effective, safe, and fast for permanent hair removal.
December 2025 in “Journal of Education Health and Sport” LED therapy is safe and effective for improving skin health and appearance.
20 citations
,
October 2021 in “Applied materials today” A new microneedle patch and yellow light therapy significantly promote hair regrowth.
May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and move by activating certain cell pathways.
April 2025 in “Asian Journal of Surgery” 26 citations
,
November 2019 in “Medical Science Monitor” LED light therapy boosts bone cell growth and function.
36 citations
,
April 2016 in “Experimental Dermatology” Photobiomodulation may help with hair growth and wound healing, but research is inconsistent and needs better quality studies.