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This study observed that hair fibers in older women become more curved with age, decreasing hair luster due to their disordered alignment and structural differences between the convex and concave sides.

This study found that stepwise thermal treatment of human hair waste at temperatures from 200 to 450 °C produced hollow microtubes, with structure changes influenced by temperature, core degradation, and cortex melting.

In this observational study, researchers found that acute telogen effluvium, a form of temporary hair loss, occurred in 80 patients following COVID-19 infection, with 70 showing a significant decrease in hair density and trichoscopic signs like peripilar sign and yellow dots.

This case report describes a unique instance of IgG/IgA pemphigus in a Chinese woman, highlighting its distinct clinical and immunopathologic characteristics, including successful management with dapsone and prednisolone.

In this observational study, treatment with oral isotretinoin was reported to stabilize hair loss in patients with frontal fibrosing alopecia, offering potential guidance for clinicians on its therapeutic use, with implications for improving affected patients' self-esteem.

This study observed that prolonged water or soil exposure can lead to significant reductions in drug levels in bleached and natural hair samples.

This paper reviews the surface degradation of hair and describes how combining 18-MEA with specific surfactants can maintain hydrophobicity on bleached and weathered hair surfaces.

In this study, transcutaneously applied nanoparticles and viral vectors were shown to penetrate murine hair follicles, internalize in antigen-presenting cells, and induce immune responses, suggesting a promising approach for vaccine delivery.

This review explores the structure and development of the hair cuticle, highlighting difficulties in studying some aspects and proposing new experimental approaches, but reports no new clinical results.

This systematic review provides an in-depth evaluation of non-invasive imaging and biophysical methods for diagnosing and monitoring vitiligo, emphasizing the need for studies with larger sample sizes to verify their use in clinical practice and research.

This study found significant structural and compositional differences in hair affected by alopecia areata compared to healthy hair, using a range of physico-chemical investigation methods.

This study observed that fetal hair follicle melanocytes varied in morphology and development stages, with melanosomes undergoing degradation into irregular pigment particles within keratinocytes.

In this study, grape seed oil was found to be the most effective herbal oil for improving gloss and reducing fractures in various hair types.

This article reviews the steps and methods involved in preparing skin tissues for three-dimensional volumetric imaging, highlighting its potential to provide detailed insights into skin structure not possible with traditional 2D histology, but reports no new findings.

A 9-year-old Hispanic girl has Uncombable Hair Syndrome, which may improve with age and biotin treatment.

In this study, incorporating a novel amino acid compound into a hair-straightening formulation improved humidity-resistant straightening and enhanced the surface and mechanical properties of hair fibers, including increased bending stiffness, reduced friction, and better shape retention under high temperature and humidity conditions.

In this study, researchers observed that even a single session of hair dyeing can damage hair fibers, with significant worsening of mechanical properties and protein composition after three or more consecutive treatments, emphasizing the need to consider the cumulative impacts of dyeing on hair health.

This study found that somatosensory axons innervating Merkel cells in adult mouse skin exhibit significant plasticity, influenced by epithelial and neural factors, indicating a complex interaction in maintaining homeostasis.

This study in adult mice found that somatosensory axons innervating Merkel cells in the skin are highly plastic, with significant remodeling in response to epithelial turnover, and that Merkel cells play a role in limiting axonal branching and promoting their maturation.

Examining scalp tissue under a microscope helps diagnose and understand hair loss diseases.

This study found that an oil-in-water microemulsion of curcumin penetrated deeper into the human stratum corneum and hair follicles compared to an amphiphilic cream.

This study found that in naturally curved human scalp hairs, distinct arrangements of cell types on either side of the hair fiber contribute to its curvature.

In this study, silver nanoparticles derived from Ziziphus nummularia leaf extract showed enhanced antibacterial, antifungal, antioxidant, and hair growth properties compared to the leaf extract itself.

This study demonstrated that human hair shafts can inhibit the growth of Gram-positive bacteria but have no effect on Gram-negative bacterial growth, offering insights into hair and scalp health.

This study found that scanning electron microscopy revealed considerable abnormalities in hair morphology in MPS I, II, IIIA, and IIIB patients, potentially related to heparan sulfate accumulation.

This study observed that lipids in human hair accumulate in specific areas and do not significantly impact water permeability, highlighting the utility of AFMIR for studying complex biomaterials.

Mouse tail skin has different keratinization near hair follicles and scales.

This study found that Mueller Matrix microscopy can accurately identify, detect, and evaluate hair follicles in mouse skin tissue, suggesting its potential for skin structure research and dermatological applications.

This study observed defects in hair cuticle cross-linking in some, but not all, mouse mutants with sparse or structurally unsound hair.

This study demonstrates that confocal laser scanning microscopy can effectively visualize the rapid diffusion and penetration pathway of a dye into the hair follicle in fresh human scalp skin.