14 citations
,
August 2019 in “Clinical and Experimental Dermatology” Combining light therapy, acid, and microneedling improves hair regrowth in stubborn hair loss cases.
27 citations
,
December 2014 in “Current problems in dermatology” Photodynamic therapy is the preferred treatment for skin precancer due to its effectiveness and safety.
7 citations
,
April 2020 in “Curēus” Combining hair transplantation with microneedling or laser and UV light may help treat tough vitiligo on hands and feet, with microneedling being affordable and easy to learn.
January 2026 in “Современные проблемы науки и образования (Modern Problems of Science and Education)” 308 nm excimer phototherapy can help some people with alopecia areata regrow hair, especially if their condition is less severe.
3 citations
,
January 2010 May 2026 in “International Journal of Cosmetic Science” UV radiation damages hair similar to bleaching, but double bleaching causes more severe protein degradation.
2 citations
,
June 2020 in “Dermatology and therapy” Narrowband-UVB phototherapy successfully treated a rare case of Graham Little-Piccardi-Lassueur syndrome.
62 citations
,
January 2003 in “Dermatology” Sunlight worsens hair loss; protect scalp.
10 citations
,
September 2022 in “Journal of Biophotonics” Blue light therapy is safe for skin and may protect against UV radiation.
7 citations
,
October 2006 in “Medical hypotheses” UV light might cause excessive hair growth by increasing PGE2 in the skin.
3 citations
,
May 2018 in “European Journal of Dermatology” Photodynamic therapy may not work for erythroplasia of Queyrat and could lead to invasive squamous cell carcinoma.
March 2023 in “Chinese Journal of Dermatology” Protecting hair and scalp from sunlight may help prevent hair loss.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a new way UVB light increases skin pigmentation through the ATP-P2X7 pathway.
3 citations
,
January 2015 in “Journal of the Egyptian Womenʼs Dermatologic Society”
9 citations
,
May 2019 in “Vestnik dermatologii i venerologii” The method could improve vitiligo treatment by effectively delivering therapy to hair follicles.
9 citations
,
October 1947 in “The Lancet” 1 citations
,
November 1947 in “The Lancet” 31 citations
,
February 1999 in “Dermatologic surgery” Sun exposure after laser hair removal can cause skin darkening, which is hard to treat and requires avoiding UV light.
14 citations
,
September 2017 in “Clinical and Experimental Dermatology” Systemic photodynamic therapy can effectively treat stubborn folliculitis decalvans with few side effects.
Retinol with polylysine cleared scalp skin growths in 21 days without side effects.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
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.
2 citations
,
May 2023 in “Photobiomodulation, photomedicine, and laser surgery” Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.
January 2014 in “한국미용학회지” UV-A radiation significantly damages semi-permanent dyed hair.
27 citations
,
January 2002 in “Exogenous Dermatology” Chronic exposure to sunlight may worsen male pattern baldness and protecting the scalp from the sun could slow it down.
74 citations
,
February 2018 in “Journal of the American Academy of Dermatology”
2 citations
,
March 2025 in “Archives of Dermatological Research” HEV light can harm or help skin and scalp, so safe exposure guidelines are needed.
9 citations
,
December 2015 in “Journal of Dermatological Case Reports” Narrowband UVB therapy significantly improved a child's rare skin condition.
1 citations
,
September 2025 in “Journal of Zhejiang University SCIENCE B” Photodynamic therapy successfully treated skin cancer in a 53-year-old woman.
4 citations
,
December 2014 in “Dermatologica sinica/Zhōnghuá pífūkē yīxué zázhì” The excimer lamp is a safe and effective treatment for severe alopecia areata.