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This study found that melanosomes extracted from human hair waste can effectively block UVA and UVB radiation when used as a natural UV filter in sunscreens, performing comparably to commercial UV filters and remaining stable in cosmetic formulations.

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

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 review updates the protective effects and molecular mechanisms of melatonin against ultraviolet-induced damage in human skin, reporting no new clinical findings.

Early sunburn treatment with certain inhibitors may reduce skin cancer risk.

This study found that low-dose UVB radiation enhances the survival, migration, and hair growth-promoting capacity of adipose-derived stem cells in mice through the generation of reactive oxygen species.

This report describes a case where solar-induced postinflammatory hyperpigmentation following laser hair removal was treated with a combination of topical treatments and serial TCA peels, resulting in only slight improvement.

This study found that DNA hypermethylation was present in melasma lesions, and treatments with sunscreen, niacinamide, and retinoic acid were associated with decreased methylation and clinical improvement.

This chapter provides an overview of skin physiology, aging effects, and how environmental factors like UV damage impact skin health, without presenting new research findings.

A 12-year-old with ichthyosis linearis circumflexa showed significant improvement after 30 sessions of narrowband UVB phototherapy, as reported in this case study.

This review highlights recent advances in the use of light exposure for health purposes, examining its role in pathology, therapeutic strategies, and molecular changes, as well as discussing future developments in this globally supported field.

This review study focused on various in vitro methods to evaluate skin permeation and retention of sunscreens, highlighting the importance of assessing sunscreen penetration due to widespread nanomaterial usage and advancements in cosmetic formulation.

This study found that the water extract of Eclipta prostrata L. may protect skin cells against UVB-induced damage, likely due to its antioxidant properties and absorption of UVA and UVB radiation.

This study found that both topical calcipotriol and narrow band ultraviolet B phototherapy improved hair regrowth and vitamin D3 levels in alopecia areata patients.

In this retrospective study, patients with cutaneous squamous cell carcinoma located in highly sun-exposed areas had a higher risk of local recurrence compared to those with tumors in less sun-exposed areas, though metastasis rates did not differ between the groups.

The researchers reported that sterol surfactants with a bulky planar structure effectively solubilized ultraviolet ray absorbers, offering a stable solution more efficiently than other surfactants.

This review highlights the role of the skin's photosensory system in mediating responses to UVA radiation, contributing both to immediate protective effects and to broader circadian and seasonal adaptations, but reports no new experimental results.

In this study, researchers used a human skin organoid model to show that solar UV exposure damages hair follicles and skin, while exosomes from mesenchymal stem cells reduced inflammation and supported hair follicle regeneration.

This review discusses the antioxidant and photoprotective potential of Polypodium leucotomos for use as a natural sunscreen ingredient and reports no new experimental results; further studies are recommended to evaluate its effectiveness.

This review suggests that melasma may be a photoaging skin disorder affecting genetically predisposed individuals, which could significantly influence its treatment and prevention strategies.

This perspective suggests that browning agents may not directly enhance UCP1 expression in white adipose tissue but instead induce browning through increased heat loss, prompting thermogenesis to compensate.

This study evaluated pregnant women's skincare and cosmetic usage habits, revealing that despite continued use during pregnancy, their awareness and practices of sun protection were insufficient. The researchers suggest that educational programs could improve knowledge on safe cosmetic choices and sun protection for expectant mothers.

In this study, the researchers reported two new cases of squamous cell carcinoma of the scalp following synthetic hair implantation, adding to existing concerns about the procedure's safety due to potential severe complications, though insufficient data exist to confirm a causal relationship.

This review discusses the addition of skin cancer caused by UV irradiation to the list of occupational diseases in Germany and reports no new clinical results.

This study reports that thermography and high-frequency ultrasound show promise as diagnostic tools for personalizing treatment plans in atopic dermatitis and psoriasis vulgaris by assessing skin lesion characteristics.

Stopping sunscreen use on the forehead led to hair regrowth in a woman with frontal fibrosing alopecia.

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.

In this study, researchers found that UV radiation causes hydroxy radicals to form cuticle holes specifically between the cuticle layers in wet hair, unlike random holes caused by Fenton's reaction.