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In this study, genetic variants in the KRT25 and SP6 genes were found to be responsible for curly hair in horses, with the KRT25 variant also causing hypotrichosis due to an epistatic effect.

This review discusses the use of nanomaterials in cosmetics, highlighting their benefits like enhanced stability and skin penetration, while also noting potential health risks and the role of natural ingredients in formulations.

This study observed that a combination of micro-needling and low-level light/laser therapy significantly increased hair density in patients with mild to moderate androgenic alopecia, showing an increase of 12 hairs/cm² after 16 weeks, compared to baseline.

This study explored a mother and daughter with loose anagen hair syndrome linked to wooly hair, identifying an intronic variant in the KRT71 gene that affects hair keratin splicing, thus broadening the spectrum of KRT71-related disorders.

This article reviews the relationship between scalp conditions and hair health, suggesting that shampoos with Malassezia inhibitory agents may help reduce premature hair loss, but it presents no new clinical results.

This study found that a 12-week regimen of a botanical supplement significantly improved skin and scalp health in women exposed to high pollution, enhancing factors like skin radiance, moisturization, and reducing wrinkle depth and scalp redness compared to a placebo.

This study found that a wheat polar lipid complex supplement significantly reduced hair loss and improved hair growth and volume in women experiencing acute hair shedding, including postmenopausal women.

This study found that specific human hair keratins are differentially expressed in the hair follicle, suggesting a shared pathway of epithelial differentiation between hair cortex and nail plate cells.

This study found that proteomic analysis can distinguish hair samples across different ethnicities and body regions based on keratin protein levels, which may aid forensic hair identification.

This study identified a homozygous missense mutation in the KRTHB5 gene linked to pure hair–nail ectodermal dysplasias in a large consanguineous Pakistani family, providing new insights into the condition's molecular pathogenesis.

This study provides evidence for K1 and K10 derivatives' presence in the inner root sheath and hair cuticle, suggesting that these hair follicle parts may follow familiar keratinization principles.

This study found that extensive cuticle damage from diperisophthalic acid oxidation did not alter the tensile properties of human hair, suggesting that these properties are mainly due to the cortex rather than the cuticle.

This study found that as Japanese women age, their hair cuticle becomes more prone to damage, shifting from type L to type E damage patterns, and hair surface properties, including fatty acid content, deteriorate.

In this clinical study, the use of potentiated zinc pyrithione shampoo improved scalp health and hair surface characteristics, suggesting that unhealthy scalp conditions may negatively impact pre-emergent hair's cuticle surface.

This study found that repeated cycles of wetting and blow-drying hair fibers can cause cracks in the hair cuticles, particularly among individuals who frequently blow-dry their hair.

This article describes the structure and components of hair cuticle cells and their intercellular junctions but reports no new clinical results.

This study proposed the existence of a membrane-like structure between the cuticle and cortex in human hair, which may provide strong protection against external stimuli.

This study found that keratin-associated proteins form part of the developing exocuticle and a-layer in hair fiber cuticle cells, while cornified envelope proteins were absent.

In this study, researchers found that UV radiation causes hydroxy radicals to form cuticle holes specifically between the cuticle layers in wet hair, unlike random holes caused by Fenton's reaction.

This study demonstrated that human hair shafts can be anatomically separated to obtain intact micron and nano keratin filaments using solvents like performic acid and urea.

This study found that a highly resistant structure, located at the interface between the cuticle and cortex of human hair, acts as a penetration barrier, which the authors propose to name the "cuticle anchored resistant base" or CARB.

This study found that heating damages Asian black male and female hair cuticles without altering their structure, with damage severity increasing at higher temperatures and longer exposure times.

This study found that laser-based goniophotometry can effectively monitor changes in hair surface reflection related to color and cuticle cell tilt across different ethnic origins.

This study observed that the molecular structure of keratins in hair fibres' discrete transition zone differs in breast cancer patients, with altered lipid ester absorption bands reverting post-cancer removal.

This study found that washing hair with surfactants reduces the internal density of hair due to cuticle lifting, and suggests that a cuticle-sealing strategy can inhibit this effect and maintain hair homeostasis.

Zinc deficiency causes early scalp hair damage that recovers slower than skin symptoms.

In this study, researchers developed enzymatic methods to isolate hair cuticle cells and remove the hair cuticle layer, finding that the harvested cuticle cells are thermally more stable and contain different structural proteins compared to descaled hair fibers.

This study employed a laser-based method to analyze how light reflection patterns vary on human hair fibers, revealing changes related to hair color and the tilt of the cuticle cells.

This study investigated the effects of intensive hair dye use in mixed-breed dogs and found changes in the cuticle of the hair shaft and the epidermis using scanning electron microscopy.

This study identified two evolutionarily conserved ultra-high-sulfur keratin proteins in human and sheep hair follicles, which are specifically expressed in the hair cuticle during the late stages of fiber development.