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This research suggests that the vitamin D receptor may regulate hair follicle cycling and provide genoprotection against skin carcinogenesis through a mechanism independent of 1,25-dihydroxyvitamin D3, based on evidence from mouse models.

In this study, researchers found that an ethyl acetate extract of the green microalga Scenedesmus deserticola significantly increased the viability of human dermal fibroblasts by over 20% compared to a control and identified a potent anti-UV compound, loliolide, through further fractionation.

This study found distinct skin surface changes, including faint mosaic melanoderma and atypical scaliness, on long-standing sun-exposed balding scalps that may be associated with actinic field carcinogenesis.

The researchers reported a rare case of invasive cutaneous squamous cell carcinoma of the scalp extending into bone and dura mater, successfully treated with surgery and skin flap repair, without metastasis observed at three months.

This review discusses the various determinants of hair quality in healthy individuals and reports no new clinical results; the authors emphasize the need for independent trials with standardized outcomes.

In this study, researchers observed that Sedum takesimense extract improved the surface properties, moisture retention, tensile strength, and wave formation of damaged hair compared to a water control, even after additional chemical and UV damage, suggesting its potential as a protective hair treatment.

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.

In this review, the authors highlight the growing use of herbal cosmetics in the personal care industry due to their health benefits, emphasizing the importance of quality control and safety in these increasingly popular natural formulations.

In this case study, researchers reported the first documented instance of malignant transformation of congenital triangular alopecia into basal cell carcinoma in a 48-year-old woman, underscoring the importance of assessing long-standing alopecic areas for malignancy.

This study presented a case of tinea capitis in a 4-year-old without typical symptoms and traced the infection to Microsporum canis carried by domestic cats, highlighting the need for accurate diagnosis and appropriate treatment, especially in households with pets.

This meta-analysis suggests a significant association between the use of facial sunscreen and moisturizer and frontal fibrosing alopecia, while finding no significant relationship with hair products or treatments.

This study developed and validated a UV spectrophotometric method for accurately estimating Minoxidil in tablet form, showing linearity across concentrations from 1-6µg/ml.

This review discusses the relationship between physical activity and skin aging, highlighting that regular moderate exercise may benefit skin health but excessive exercise could increase oxidative stress and damage.

This study evaluated a UV-Vis spectrophotometric method to measure minoxidil in compounded capsules from pharmacies in Pernambuco, Brazil, finding that while the formulations met weight criteria, most deviated significantly from declared minoxidil content, highlighting the need for robust quality control in compounded medicines.

In this study, commercial synthetic braiding hair samples from Kenya were analyzed, revealing that while no Ammonium Thioglycolate was detected, significant formaldehyde contamination was present, with varying concentrations throughout the hair strands, potentially impacting consumer safety.

In this review, researchers highlighted the potential of herbal hair oils made from rosemary (Rosmarinus officinalis) and black sesame (Sesamum indicum) as safe and effective alternatives to synthetic products, citing their antioxidant, anti-inflammatory, and nourishing properties that support scalp health and hair quality.

This review highlights the potential of herbal hair oil prepared with rosemary and black sesame for scalp health, hair strength, and appearance, emphasizing their antioxidant and nourishing benefits as a natural alternative to chemical formulations.

This study found that Lgr6+ stem cells in mice are not major initiators of UV- or chemically induced skin tumors.

Treating primary cicatricial alopecia is difficult and requires evidence-based methods.

This chapter reviews various dermatological drugs and treatments, highlighting adverse effects, with no new clinical findings reported.

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.

Stat3 helps skin heal but can also cause skin diseases if overactive.

This research review found that climate change exacerbates skin conditions like photoaging, inflammatory dermatoses, and skin cancers by causing oxidative stress and inflammation, suggesting that dermatological practices should incorporate environmental and multicultural considerations to optimize patient outcomes in diverse populations.

This review discusses current and potential approaches using stem cells for treating hypopigmentation disorders like vitiligo but does not present new clinical findings.

In this comprehensive review, researchers reported that macromolecules like type I collagen, keratin, and ceramides enhance hair health by improving follicular function and increasing hair density, strength, shine, and resilience, as shown in various in vitro, animal, and human studies.

In this study, the researchers developed a new method using H2O2/TiO2/UV for extracting human hair keratins rapidly, yielding higher protein and enabling the production of keratin films with better hemostatic performance and varied wound-healing properties compared to films from traditionally extracted keratin.

Keratin film can effectively mimic human hair for testing hair damage.

This study found that ultraviolet-induced fluorescence dermoscopy enhanced the identification of follicular openings in alopecia areata, potentially aiding in the assessment of disease severity and treatment strategies.

This study found that Indian and Chinese black hair, with higher melanin content, resist photochemical degradation better than European hair, which has lower melanin levels, when exposed to dry, hot climates.

The study found that in mice, conditional knockout of p53 in epidermal keratinocytes reduced food intake following UVB exposure and resulted in anxiety-related behaviors, suggesting that p53 plays a role in appetite stimulation and anxiety via UVB-induced β-endorphin production.