19 citations
,
July 2009 in “Clinical and Experimental Dermatology” The study found that long-term sun exposure does not significantly affect follicular plugs on the scalp, and the scalp's appearance is unique compared to other body parts.
38 citations
,
January 2023 in “International Journal of Medical Sciences” Red-light therapy may slow myopia progression better than traditional treatments.
23 citations
,
September 2011 in “Journal of Dermatological Science” Red LED light helps mouse hair grow by increasing growth factors from skin cells.
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.
106 citations
,
April 2013 in “Dermatologic Surgery” Low-level light therapy safely improves hair growth and thickness for androgenetic alopecia.
81 citations
,
August 2014 in “Lasers in Surgery and Medicine” Red light therapy is safe and effectively increases hair growth in women with hair loss.
70 citations
,
April 2017 in “Lasers in surgery and medicine” Blue light promotes hair growth by interacting with specific receptors in hair follicles.
33 citations
,
January 2017 in “Annals of Dermatology” LED light can help hair growth by activating specific cell pathways.
28 citations
,
December 2017 in “Lasers in Medical Science” Monochromatic light devices, especially the 308-nm excimer laser, are promising for treating alopecia areata but more research is needed.
17 citations
,
December 2015 in “International Journal of Cosmetic Science” Visible light can improve skin disorders and hair loss, but more research is needed to understand long-term effects.
9 citations
,
August 2017 in “Photochemistry and Photobiology” Red light at 627 nm can safely trigger IL-4 release in skin cells, potentially helping treat inflammatory skin conditions.
8 citations
,
November 2020 in “Optics and Laser Technology” LED light therapy is effective for skin and hair treatments but requires careful use to minimize risks.
68 citations
,
January 2007 in “Journal of Cosmetic and Laser Therapy” Laser/light treatments for hair loss are popular but lack scientific data proving effectiveness.
42 citations
,
January 2011 in “Journal of Biomedical Optics” Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
19 citations
,
February 2018 in “Lasers in Medical Science” Red light and LED treatments help hair grow by activating a specific cell signaling pathway.
6 citations
,
July 2021 in “Microbial biotechnology” The combined treatment with engineered bacteria and yellow LED light improved wound healing in mice.
4 citations
,
January 2011 in “Current problems in dermatology” At-home laser and light devices can safely reduce acne and hair growth when used correctly but are less effective than professional treatments.
2 citations
,
March 2025 in “Archives of Dermatological Research” HEV light can harm or help skin and scalp, so safe exposure guidelines are needed.
April 2024 in “Frontiers in cellular and infection microbiology” Blue light might help treat skin conditions by affecting the skin's bacteria.
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.
February 2009 in “Journal of The American Academy of Dermatology” Fractional infrared technology is effective and safe for treating cervical laxity.
July 2002 in “Dermatologic Surgery” Some people's hair turned white or gray after using intense pulsed light for hair removal, and for some, it was permanent.
165 citations
,
August 2013 in “Lasers in Surgery and Medicine” Low-Level Laser Therapy is effective and safe for hair growth with minimal side effects.
65 citations
,
March 2016 in “Lasers in Medical Science” Most low-level light therapy studies did not accurately report how light was measured, affecting treatment reliability.
31 citations
,
June 2018 in “Dermatologic Surgery” Low-level light therapy safely improves hair coverage, thickness, and count in androgenetic alopecia patients.
24 citations
,
March 2015 in “Dermatologic Surgery” Home-use cosmetic laser and light devices show modest results for hair removal and acne treatment, but more research is needed for confirmation.
8 citations
,
July 2020 in “Medicine” Helmet-like device safely increases hair density for people with hair loss.
6 citations
,
June 2013 in “British Journal of Dermatology” Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.
5 citations
,
October 2020 in “Lasers in Medical Science” Combination therapy works best for female hair loss, increasing density and thickness.
4 citations
,
February 2014 in “Proceedings of SPIE” Low-Level Light Therapy is effective for skin rejuvenation, wound healing, and hair growth, with mild side effects.