2 citations
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December 2013 in “Journal of Cosmetic Dermatology” This study found that ultraviolet treatment for skin conditions such as vitiligo can damage hair, with psoralen plus ultraviolet A causing more follicle damage than narrow band ultraviolet B.
24 citations
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October 2008 in “PubMed” This article discusses how UV radiation affects hair protein and pigment, destructuralizes keratin, and emphasizes the protective role of melanin, but reports no new clinical results.
May 2026 in “International Journal of Cosmetic Science” This study found that UV radiation exposure during a simulated Brazilian summer caused more significant mechanical damage to natural hair than bleaching, although both caused comparable structural alterations, with double bleaching leading to the most severe protein degradation.
13 citations
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September 2014 in “Journal of photochemistry and photobiology. B, Biology” This study found that UV radiation exposure increased protein elution and altered protein characteristics in hair fibers, suggesting environmental factors impact hair shaft proteins.
May 2026 in “Journal of Photochemistry and Photobiology” This review found that solar radiation, pollution, and trace metals cause significant damage to human hair, with factors like UVB radiation primarily affecting light-colored and bleached hair; most data were derived from in vitro and ex vivo simulations.