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.
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.
17 citations,
April 2004 in “Acta Clinica Belgica” UV light makes skin signs of lack of carotene and vitamin A more visible.
14 citations,
January 2008 in “Dermatology” Vitamin D made by the skin plays a role in immune defense and skin health, and more research is needed to understand its full effects.
14 citations,
January 2005 in “Pediatric Dermatology” UVA1-light therapy successfully treated a child's skin condition, mycosis fungoides.
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.
13 citations,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
10 citations,
September 2022 in “Journal of Biophotonics” Blue light therapy is safe for skin and may protect against UV radiation.
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.
9 citations,
September 2009 in “Journal of Cutaneous Medicine and Surgery” UV light causes skin color loss in bald areas; wear a cap and use sunscreen.
8 citations,
July 2020 in “BMC genomics” The research found genes that change during cashmere goat hair growth and could help determine the best time to harvest cashmere.
Laser diode light boosts hair follicle cell growth and certain gene expressions.
8 citations,
May 1987 in “Journal of The American Academy of Dermatology” UV light does not significantly affect minoxidil's ability to treat male pattern baldness.
7 citations,
December 2020 in “Clinics in Dermatology” Some alopecia treatments might help treat COVID-19, but more research is needed.
7 citations,
October 2006 in “Medical hypotheses” UV light might cause excessive hair growth by increasing PGE2 in the skin.
7 citations,
September 2004 in “International Journal of Cosmetic Science” Blond hair lightens more with visible light directly, while ultraviolet light lightens it after washing by damaging other hair parts.
6 citations,
July 2021 in “Microbial biotechnology” The combined treatment with engineered bacteria and yellow LED light improved wound healing in mice.
6 citations,
May 2020 in “Nutrients” Eating fewer calories may slow skin aging and improve skin health through various biological changes.
6 citations,
October 2018 in “Lasers in Medical Science” Low-level laser therapy using near-infrared light may help heart conditions and promote healing by releasing nitric oxide.
6 citations,
September 2018 in “Journal of Dermatological Treatment” LLLT devices for hair loss need more research to define proper guidelines.
6 citations,
August 1993 in “Archives of Dermatology” The study found that polymorphous light eruption varies among patients and can be distinguished from benign summer light eruption by the time it takes for symptoms to appear after sun exposure.
5 citations,
October 2020 in “Veterinary record case reports” Fluorescent light energy may help treat skin infections in dogs with calcinosis cutis.
5 citations,
December 2016 in “International journal of biometeorology” Bright light during the day doesn't change most human clock genes but may slightly increase Rev-erb-ß.
5 citations,
November 2014 in “Hair transplant forum international” Low Level Laser Therapy can promote hair growth.
5 citations,
September 2005 in “Dermatologic Surgery” Using a polarized LED magnifier during hair transplants eases recipient site creation and reduces eye strain but doesn't improve graft creation or placement.
4 citations,
June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
4 citations,
March 2013 in “The American Journal of Cosmetic Surgery” Melanin absorbing light is necessary but not enough for effective hair removal by light treatment.
3 citations,
June 2023 in “ACS sustainable chemistry & engineering” The study found a green method for strengthening hair works on all hair colors and is eco-friendly.
3 citations,
July 2003 in “PubMed” The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
3 citations,
October 1979 in “Laboratory animals” Hairless rats are good for testing anti-inflammatory drugs, similar to haired rats, without needing to remove fur.