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This study describes the presence of holes in hair fibers, absent in hair follicles, likely forming from daily care actions and removal of extractable substances.

This study found that different polypeptides, including KP peptide and hydrolyzed keratin, can improve the mechanical properties of damaged hair under varying conditions, with reduction environments and cysteine content influencing their effectiveness.

In a laboratory study, researchers found that a novel Bioactive Crosslink Repair Complex improved both the protection and repair of chemically damaged hair, enhancing tensile strength, shine, and cuticle alignment when added to bleaching mixtures and leave-in conditioners.

This study established a model of heat-damaged hair to assess hair care products, finding that daily hair drying for a month causes notable cuticle lifting, reduced mechanical properties, and increased protein release, and the model simulates even more severe damage.

This study found that human hair exhibits significant deformation in its intermediate filaments under strain, with recovery taking about 1000 minutes, suggesting a self-healing period post-mechanical stress. Additionally, cuticle scales deform much less than the cortex, and the Poisson ratio aligns with soft matter properties.

This study identified a novel keratin-associated protein, KAP24.1, which is specifically expressed in the human scalp and located in the hair cuticle.

This study suggests that TGase 3 may contribute to hair fiber scaffolding by forming specific isopeptide bonds between keratin intermediate filaments and keratin-associated proteins.

In this study, researchers using a UVB-induced mouse model identified the gene COL7A1 as a novel marker for hair luster, finding that minoxidil, caffeine, and biotin effectively restored its expression, indicating potential therapeutic strategies.

This review found limited scientific evidence on the importance of scalp health for successful hair transplants, with most care recommendations based on surgeons' opinions.

This report discusses the Ninth World Congress for Hair Research and highlights the potential of hair follicle studies to advance understanding of various diseases, with no new clinical results presented.

In this study, extracting internal lipids from Caucasian hair fibers led to decreased water permeability, influenced by the fluidity of lipids.

This study demonstrates that Rac1 activity is essential for normal hair follicle formation but influences hair structure and pigmentation, in terminal differentiation, through alterations in hair shaft, cuticle, and pigmentation organization.

In this study, researchers developed a novel periodate oxidation method for extracting keratin micro-units from waste hair and feathers, achieving yields of 31.28% and 20.64% respectively, enhancing the stability of oil-in-water emulsions and suggesting potential for sustainable biomaterial production.

This study proposes a new method to selectively isolate keratin-associated proteins and keratin from human hair, suggesting that KAPs may support keratin fibers in hair structure.

This article reviews various hair abnormalities observable through trichoscopy in conditions like monilethrix, trichorrhexis nodosa, and ectodermal dysplasias, with no new clinical findings reported.

This study found that extracellular factors from a specific developmental stage can promote hair follicle neogenesis in adult skin by facilitating interactions between fibroblasts and keratinocytes.

This study found that a mixed extract of N. jatamansi, O. basilicum, and C. sativus, particularly when extracted via steaming and ultrasonic methods, increased antioxidant content, stimulated melanin production for black hair, and promoted hair growth in mouse models, while maintaining high cell viability.

This review discusses the unique characteristics and disorders of Asian hair, emphasizing the need for more comprehensive studies in this area.

This study found that crossbred lambs fed liquid diets with reconstituted cow's milk initially grew wool without crimp, with crimp resuming two weeks post-weaning.

This study found that follicular unit-like wigs made from xenogeneic human hair and medical polypropylene exhibited good histocompatibility, a low loss rate, and satisfactory appearance one year after transplantation in rabbits.

This review discusses the use and sustainability challenges of luxury animal hair fibers in the fashion industry and reports no new research findings.

This review discusses the history and development of keratin biomaterials for biomedical uses, highlighting their biological activity and biocompatibility, and provides no new research findings.

This study found that prostaglandin receptors are widely expressed in hair follicles, suggesting a complex network of prostanoid pathways involved in hair growth control.

This review explored the biological properties of Punica granatum, noting its antioxidant, anti-inflammatory, and antimicrobial activities, and highlighted its potential as a therapeutic agent for various conditions; however, more extensive clinical trials are needed to confirm its effectiveness and safety.

This study found that Magra sheep with high-luster wool exhibited significantly higher expression of keratin genes, suggesting that increased keratin protein levels may be crucial for wool luster.

This study concluded that the formulated polyherbal shampoo is a chemical-free product with nourishing, conditioning, cleansing, and antimicrobial effects.

This review discusses the diverse industrial applications of hemp beyond traditional fiber uses, highlighting its phytochemical components with antioxidant and antimicrobial properties that are explored in agrochemicals, cosmetics, and food sectors.

This case report observed that a 2-year-old girl with loose anagen hair syndrome experienced rapid and significant improvement without adverse effects from tapered minoxidil 5% treatment over 28 months.

This study used proteomics to identify various proteins in human hair, which may help develop novel biomarkers for hair health, disease, and aging.

This study highlights that improving medical professionals' knowledge of hair cosmetics can enhance patient adherence to alopecia treatments and reduce health risks from incorrect use of hair products.