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Human hair's ability to get wet is complex and can change with treatments, damage, and environment.

This article discusses how drug molecules integrate into hair fibers, focusing on biological transport mechanisms and physicochemical factors, but reports no new experimental findings.

This study found that dimethylpabamidopropyl laurdimonium tosylate, a quaternary ammonium surfactant, adsorbs onto human scalp hair with kinetic and isotherm behaviors fitting specific models, changing hair fiber wettability from hydrophobic to hydrophilic.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.

In this study, four male patients with extensively photodamaged scalps showed a 60-90% improvement in dyspigmentation, lentigines, and keratosis after a single treatment with the fractionated 1,927 nm thulium fiber laser, with no adverse events observed.

This review explores the complex interrelationships among different properties of natural hair fibers and underscores the need for a holistic taxonomy to improve data interpretation across disciplines, but it reports no new experimental results.

In this study, microarray and proteomic analyses indicated that genes involved in immune response, receptor binding, and growth factor activity might influence wool fibre diameter in sheep.

This study observed that adults with thinning hair who ingested a patented botanical-based supplement experienced significant increases in hair shaft diameter and reductions in hair breakage over 180 days, suggesting improved hair strength and length across various demographic groups.

This study found that adding hair fibers to friction materials increased their friction coefficient stability and impact strength while decreasing wear rates, with 1% hair fiber content notably improving performance.

This study found that testosterone therapy increased bone mineral density in older men with low testosterone, and combining it with finasteride may reduce prostate enlargement associated with testosterone treatment.

Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.

In this study, variation in the KRTAP15-1 gene in goats was linked to changes in cashmere fibre diameter, with specific variants showing dominant or recessive effects.

Improving knowledge and practices in animal fibre production is crucial to meet market demands and potentially revive natural fibres.

The study reported that using polyamide hair fiber implants may be an effective adjunctive treatment for scalp scars, with most patients experiencing no complications.

This study found that implanting polyamide hair fibers may serve as a supplementary treatment for scalp scars, with most cases showing favorable outcomes and manageable complications.

This study found that reinforcing epoxy with short human hair fibers and glass micro-spheres improved its wear resistance, suggesting potential applications in products like brake shoes and pads.

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

This study fabricated a polyamide fiber containing amber particles and characterized its potential for textile applications, noting that the chemical structure of amber remained unchanged after grinding and integration.

In this animal study, researchers found that exposure to a CO2 laser at various power levels caused significant skin damage in rats, including severe burns, coagulation, and tissue obliteration, with higher laser doses resulting in more pronounced injuries.

This preliminary study found that poplar seed hair fibers have promising properties for use as environmentally friendly, lightweight insulation, with similar thermal resistance to wool and polyester despite being slightly less effective than down.

In this study, minoxidil treatment in aged mice increased elastin expression and improved aortic structure and function, suggesting its potential for arterial remodeling in aging.

This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.

In this study, combined treatment with transglutaminase and keratin significantly repaired damaged hair by improving its structural properties, reducing swelling, and enhancing crosslink activities, as evidenced by microscopy and spectroscopy analyses.

This study found that L-cystine-modified rabbit hair fibers had improved dye adsorption and spinnability, due to changes in secondary structure and surface characteristics.

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 plasma jets can effectively clean and oxidize human hair fibers, with argon/oxygen plasma having the strongest effects, suggesting potential as an alternative to peroxide treatment.

This study identified key genes and signaling pathways involved in the growth phases of Pashmina goat hair follicles, highlighting the role of several gene families and transcription factors in fiber quality and growth regulation.

This study describes the development of polyamide 6 composite fibers with amber filler, finding them suitable for use in medical textiles such as compression garments due to their biocompatibility with skin cells.

This study found that polymorphisms in the KAP8.1 gene were significantly associated with cashmere weight, length, and guard hair length in Chinese Inner Mongolian Cashmere goats, but not with fibre diameter.