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This study found that mechanical damage from grooming and environmental factors contributes to crack formation and eventual breakage in African-American hair, highlighting the need for continuous care.

This review explains the mechanical composition and molecular interactions that determine hair's mechanical properties, without providing any new experimental findings.

This study found that chemical hair straightening significantly reduced hair curl and improved smoothness and shine, but did not significantly affect transverse fissures or split ends, indicating potential benefits with some side effects.

This chapter provides an overview of the complex chemical and physical structure of the hair surface, detailing how factors like ethnicity, environmental stress, and cosmetic treatments can alter its properties and influence the adhesion of hair care products.

This study outlines how combined ultrasonic and infrared hair treatments may enhance hair restoration and performance by breaking down keratin disulfide bonds for better treatment access and sealing cuticle scales to preserve improvements, with potential applications in salon and home settings.

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.

This study's simulations suggest that biomechanical factors, like follicle geometry and tissue stiffness, are likely significant in hair fiber protrusion, providing a framework for future experimental validation.

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.

This study investigated the mechanical response of the human hair cuticle to strain and found that cuticular deformation directly corresponded with fiber elongation, revealing significant molecular-level changes in disulfide crosslinks but maintained structural stability, highlighting the role of the cuticle in stress resistance.

This study found that hair treated with shampoo containing water-soluble silicone demonstrated smoother sliding and better detangling, compared to shampoo with water-insoluble silicone, due to differences in conditioning film formation.

Up to 50% of scalp hair can be lost before it appears thin, and treatment is only needed for hair loss caused by diseases or deficiencies.

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

This review discusses the role of hair microscopy in diagnosing alopecia, stating that while it excludes diagnoses related to hair breakage, it only confirms nonspecific short anagen in alopecia cases.

This study suggests that human evolution involved accelerated changes in the HR gene, affecting its role in mediating postnatal hair cycling.

This article reviews loose anagen hair syndrome, an inheritable hair disorder affecting children and sometimes adults, but does not report any new clinical results.

This study found that treating hair with 1 M sodium hydroxide increases its self-friction coefficient, suggesting potential applications in forming fine frictional fibers for medical uses.

This study found that latanoprost induces significant growth and pigmentation of lashes and ancillary hairs, with effects mirroring both brief and chronic treatments observed in patients and animal models.

This article explains the structure and multifunctional roles of the human skin, including its protective, regulatory, and sensory functions, but does not report new research findings.

This article reviews common skin reactions associated with epidermal growth factor receptor inhibitors and reports no new clinical findings, emphasizing the need for understanding nursing care and oncodermatology.

This article reviews various aspects of shampoos, including preparation methods and commercial value, but reports no new experimental results, instead focusing on patents and product evaluation criteria.

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.

This study used a 3D live imaging system to map cell dynamics in human hair follicles, revealing patterns of cell movement and division that help explain hair fiber extrusion during hair growth.

In this study, researchers developed and assessed two polyherbal hair tonic formulations, finding that Hair Tonic A containing 10% white tea extract improved hair thickness, manageability, and anti-frizz properties, particularly for blonde and black hair, while demonstrating greater stability compared to Hair Tonic B.

This study identified new geometric and mechanical parameters for curly and kinky/coily hair, which may inform more effective personal care products tailored to these hair types.

This study used quantitative methods to identify new geometric and mechanical parameters of curly and kinky/coily hair, aiming to improve classification and develop better personal care products for these hair types.

This study found that repeated use of a protein hair conditioner, followed by hot air and gamma irradiation, may lower serum collagen I and increase heat shock protein concentrations in rats, suggesting potential cumulative risks.

This review examines the role of hair follicles and sebaceous glands in percutaneous drug delivery but does not report new clinical results; it calls for further exploration of follicle-targeting therapies.

This review discusses female pattern hair loss, its psychological impact, and available treatments but provides no new clinical findings; the authors emphasize early intervention for better outcomes.

Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.

This study explored the stem of Moullava spicata and found it to be rich in secondary metabolites and natural antioxidants, showing significant concentration-dependent antioxidant activity, which supports its ethnomedicinal use and provides a basis for further pharmacological research.