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This review examines the potential of plant-derived exosome-like nanovesicles in dermatology, highlighting their bioactive properties and discussing challenges to their clinical application, but does not provide new clinical results.

This study found that some white or grey hairs can naturally regain pigmentation, suggesting hair greying may be reversible in certain conditions linked to psychological stress.

This tool was developed to enhance reproducibility and sensitivity in measuring partial hair regrowth in alopecia areata patients, particularly those undergoing JAK inhibitor therapy, using scalp photographs.

In this study, researchers examined trichoscopic features in a cohort of Black patients with alopecia areata, identifying both common and novel characteristics, but found no statistical link between these features and the severity of alopecia.

In this study, researchers developed an open-source browser-based tool to enhance the reproducibility and accuracy of SALT score calculations from scalp photos, aimed particularly at assessing partial regrowth in alopecia areata patients on JAK inhibitor therapy.

This review discusses the clinical features and treatment options for adult acne, highlighting the need for tailored management in specific populations, but reports no new findings.

This review examines the adaptive value and mechanisms of seasonal coat colour moulting in birds and mammals, highlighting the challenge of camouflage mismatch and the necessity for evolutionary adaptation under climate change.

This study observed that in wild snowshoe hares, gene expression patterns during seasonal coat color change show a consistent lag between gene expression and visible coat color changes.

This study analyzed gene expression changes during the autumn coat color change in mountain hares and found conserved gene regulation with snowshoe hares, highlighting its role in seasonal camouflage adaptation.

In this study of four Chinese goat breeds, black goats exhibited significantly higher melanin content, while Inner Mongolian cashmere goats had longer fiber lengths. These findings highlight genetic variations in coat color and fiber length, informing future breeding programs.

This study found that a blink frequency of at least 20 blinks per minute is necessary to maintain tear film stability in young participants with dry eye symptoms, with lower frequencies significantly worsening various indicators of eye dryness.

This study revealed that differential gene and protein expression in the "Yufen I" H line chicken breed is crucial for Columbian plumage coloration, particularly in the melanogenesis pathway.

In this study, the expression of Gnαs was significantly higher in black mice compared to white mice, suggesting its potential involvement in coat color formation in mice.

Blond hair in Solomon Islanders is due to a unique genetic variant, not European ancestry.

In this study, researchers identified 18 genetic associations with scalp and facial hair traits in Latin Americans, including novel loci for hair greying and balding, with implications for understanding hair evolution.

This review discusses how changes in hair and skin may indicate underlying vitamin deficiencies and emphasizes the need to identify populations at risk for these deficiencies; it reports no new results.

This article reviews therapy-related hair disorders in oncology patients, detailing underlying mechanisms and potential management strategies, but reports no new clinical findings.

This article reviews innovations in hair cosmetics, focusing on esthetic procedures and products in the Indian market, and reports no new experimental findings.

This review highlights the possibility of safely altering hair color through innovative cosmetics by targeting key biological processes in hair follicles, using insights from mammalian pigmentation studies and drug-induced hair color changes as potential pathways.

In this study, researchers used computer-generated models to demonstrate that subtle changes in hair diameter, density, and style significantly affect perceptions of age, health, and attractiveness.

DNA can predict physical traits like eye and hair color accurately, especially in Europeans, but predicting other traits and in diverse populations needs more research.

In this study, researchers created nanowhiskers from crab shell-derived nanochitin that self-assembled into vibrant structural colors within a film. The material, sensitive to environmental changes, shows potential as a food freshness indicator and a sustainable dye for cosmetics due to chitin's biocompatibility.

This review of murine studies reports that γ-rays affect hair follicle pigmentation in mice throughout the hair cycle, while effects on hair structure may be obscured by aging.

In this study, the hot-wire hair removal device (no!no!) was found to be no more effective than shaving in reducing hair density, regrowth rate, or altering hair characteristics.

This study observed that women with PCOS have lower resistive and pulsatility index values in ovarian stromal arteries compared to normal women, indicating Doppler ultrasonography as an effective diagnostic tool for PCOS-related hemodynamic changes.

The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.

This study found no strong genetic link between hair color and alopecia areata risk, although a weak inverse association with blond hair was suggested, noting the results are exploratory and require further investigation with larger cohorts.

In this review, the authors emphasize that phenotypic heterogeneity in genetic systems and human diseases is influenced by stochastic fluctuation and network topology, proposing that ultrasensitivity and threshold effects explain this variability, which may inform strategies for preventing and treating genetic diseases.

This study found that in SAMP8 mice, phenotypic changes in outer hair cells or the stria vascularis, possibly due to oxidative deficiencies, may predict variability in age-related hearing loss before outer hair cell loss occurs.

This article reviews the clinical presentations, pathophysiology, and treatment options for various skin conditions in children with skin of color and reports no new findings.