September 2025 in “International Journal of Cosmetic Science” This study observed that exposing human hair keratins to heat or UV treatments led to modifications in cysteine residues, disrupting crucial disulphide bonds and potentially reducing the structural integrity of hair similar to prolonged styling or sunlight exposure.
February 2026 in “UiTM Institutional Repositories (Universiti Teknologi MARA)” This study found that cis-urocanic acid can engage in non-enzymatic reactions with reactive sulphur species, forming new metabolites, and suggests sulphide donors may protect against UVB-related toxicity.
27 citations
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January 2002 in “Exogenous Dermatology” In this study, researchers reported that chronic UV exposure may contribute to androgenic alopecia progression by influencing hair cycle changes and exacerbating solar elastosis in the scalp.
6 citations
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October 2007 in “Medical Hypotheses” This article proposes that androgenic alopecia might be an evolutionary mechanism for reducing prostate cancer risk by enhancing UV absorption, rather than being a risk factor.
8 citations
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April 2016 in “Experimental dermatology” This study found that the immune-competent B6. Cg‐Tyr c−2J Hr hr /J congenic mouse line had a more pronounced delayed sunburn response and different proliferative skin reactions to UV exposure compared to SKH 1 mice.