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This study found that skin disorders, particularly cosmetic issues like acne and hair loss, are very common among medical students, with gender and place of origin significantly influencing the development of certain conditions.

This study found that higher melanin concentration in black hair offers photoprotection against sunlight-induced protein damage in the cortex, whereas the cuticle experiences similar photodamage regardless of hair pigmentation.

This study reports cases of androgenetic alopecia patients with depigmented macules on sun-exposed scalp areas, suggesting potential ultraviolet-induced scalp leukoderma not covered in existing dermatology texts.

This study found that tryptophan fluorescence in natural white hair is significantly weaker than in other unpigmented keratin fibers, possibly due to greater environmental UV exposure or unknown chemical interactions.

In this retrospective study of 123 pediatric alopecia areata patients, hair loss episodes were most frequent in winter and showed significant correlations with air pressure and hours of sunlight, especially in non-atopic individuals, suggesting a role for climate factors in seasonal hair loss patterns.

This study found that sunlight exposure causes significant structural and chemical damage to hair, including cuticle loss, cortex damage, and discoloration, with water playing a major role in discoloration of brown hair.

This review explores the detrimental effects of sunlight on the skin’s circadian rhythm and photodamage, noting the potential of natural cosmeceuticals to influence this rhythm, but reports no new results.

This review discusses the effects of sunlight and artificial UV radiation on the skin and reports no new clinical results; a panel from the NIH found the evidence insufficient to recommend tretinoin for sun-induced wrinkles.

This report describes two cases of alopecia totalis treated with turban psoralen and sunlight exposure, but it provides no clinical outcome results.

This study reports that A132, a hair dye ingredient, induces phototoxicity and photogenotoxicity via mitochondrial apoptosis when exposed to sunlight, suggesting potential risks of oxidative stress and hair damage.

This study found that while participants in Jeddah, Saudi Arabia, had good knowledge about Vitamin D and recognized sunlight as a key source, there was inconsistency in their attitudes towards maintaining adequate Vitamin D levels.

A man developed a rare skin condition and drug-induced lupus, highlighting the need for biopsy in diagnosing skin issues caused by sunlight.

This study demonstrated that litifilimab significantly reduced disease activity in cutaneous lupus erythematosus by Week 16, with improvements most notable in sunlight-exposed skin areas.

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.

This case report describes an 18-month-old boy who developed a rare phototoxic skin reaction to terbinafine, likely triggered by sunlight exposure, which resolved after treatment with corticosteroid cream and sun avoidance.

This study aimed to develop a dermocosmetic exfoliating formulation using babassu fibers for androgenetic alopecia treatment, but found that although the formulation met sensory standards, it was unstable in sunlight and heat, suggesting a need for optimization before commercialization.

This study observed that serum Vitamin D3 levels were low among South Indian students with diffuse hair fall, highlighting global hypovitaminosis D as a concern and suggesting possible dietary or sunlight exposure influences.

This report documents two cases of eruptive nevi occurring in the skin folds of children with Langerhans cell histiocytosis.

This review explores the biological functions of vitamin D, highlighting how deficiency may increase the risk of various diseases, but reports no new clinical results.

This review compiles epidemiological data on actinic keratoses and suggests promoting strategies like early diagnosis and photoprotection to prevent progression to skin cancer, but it reports no new clinical findings.

In this study, researchers concluded that hereditary 1,25-dihydroxyvitamin D-resistant rickets, characterized by specific mutations in the vitamin D receptor gene, may resolve metabolic abnormalities with age, though associated alopecia remains.

This case report describes a 6-year-old boy with Bloom syndrome characterized by distinct facial skin changes, delayed development, and a high frequency of sister chromatid exchanges.

This review discusses the potential use of spin traps in cosmetic products to limit reactive oxygen species generated by pollution, emphasizing the need for further research due to toxicity and regulatory concerns.

This study found that a newly developed keratin active ingredient effectively prevents aging damage in hair by strengthening its structure after exposure to simulated environmental stress.

This study found that UVB radiation primarily causes hair protein loss, while UVA radiation mainly contributes to hair color changes, with no significant differences in mechanical properties observed between photooxidized and non-irradiated hair.

According to this worldwide systematic review, psoriasis is a prevalent disease with adult prevalence ranging from 0.53% to 11.48%, more common in older populations and with substantial knowledge gaps in low and middle-income countries.

The study observed that consuming Pflorida soup, made from UV-exposed oyster mushrooms, maintained significant vitamin D levels comparable to recommended daily intake, despite storage and cooking reducing the vitamin content.

This article discusses a proposed "Darwinian" model of carcinogenesis and emphasizes that cancer prevention involves more than avoiding mutagens, as gene-environment interactions are complex and non-linear.

This review suggests that androgenetic alopecia may be exacerbated by exposure to ultraviolet radiation and proposes considering it as a photoaggravated condition requiring photoprotection.

This review discusses the various roles of vitamin D in skin disorders, including established use in psoriasis and potential applications for atopic dermatitis and skin cancer prevention, but reports no new clinical results.